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直接讉K��后台�Q�蟩�q�filter�q��o�?AuthorizationFilter.java�Q�filter为特定权限过滤器

youngturk — Fri, 12 Jul 2013 05:15:00 GMT

web.xml
<filter>
        <filter-name>AuthorizationFilterfilter-name>
        <filter-class>com.cenin.util.filter.AuthorizationFilterfilter-class>
    filter>
<filter-mapping>
        <filter-name>AuthorizationFilterfilter-name>
        <url-pattern>/*

AuthorizationFilter.java
public class AuthorizationFilter implements Filter
{

    public void doFilter(ServletRequest req, ServletResponse resp, FilterChain chain) throws IOException, ServletException
    {

        HttpServletRequest request = (HttpServletRequest) req;
        HttpServletResponse response = (HttpServletResponse) resp;
        HttpSession session = request.getSession();

        String servletPath = request.getServletPath();//获得如： /baseinfo/codeBillTypeList.action

        Object user = session.getAttribute(Config.getConfig().getSessionUser());

        //判断权限
        boolean passed = true;

        /*if(user == null && (servletPath.indexOf("action")>=0 )){
            passed = false;
            String[] noLimit = Config.getConfig().getNoFilter().split(";");
            for(int i=0;i                if(servletPath.matches(noLimit[i])){
                    System.out.println(servletPath + "  " + noLimit[i]);
                    passed = true;
                    break;
                }
            }
        }*/
        request.getRequestDispatcher(servletPath).forward(request, response);//控制struts or xwork跌��{

//        if(passed)
//            chain.doFilter(request, response);
//        else
//        {
//            String modelType = request.getParameter("model.bmoduleType");
//            String particalUrl = request.getParameter("particalUrl");
//            session.setAttribute("model.bmoduleType", modelType);
//            session.setAttribute("particalUrl", particalUrl);
//            String url = Config.getConfig().getPageLogin();
//            RequestDispatcher dispatcher = request.getRequestDispatcher(url);
//            dispatcher.forward(request, response);
//        }
    }
    public void init(FilterConfig filterConfig) throws ServletException
    {

    }
    public void destroy()
    {

    }

}
xwork.xml��d��
<include file="xwork-onlinehall.xml"/>
xwork-onlinehall.xml文�g内容�Q?br /><package name="onlinehall" extends="cenin" namespace="/onlinehall" externalReferenceResolver="com.atlassian.xwork.ext.SpringServletContextReferenceResolver">
<action name="myOrderLoadList" class="com.cenin.web.action.onlinehall.MyOrderAction" method="myOrderLoadList">
            <result name="success" type="freemarker">/onlinehall/myOrder.ftlresult>
        action>
package>
MyOrder.java内容
public class MyOrderAction extends BaseActionSupport {
public String myOrderLoadList() throws Exception {}
}

youngturk 2013-07-12 13:15 发表评论

Struts2文�g上传功能开�?

youngturk — Thu, 29 Nov 2012 15:47:00 GMT

技术要�?
本节代码详细说明文�g上传功能的开发流�E�，介绍知识点如下：

1. 文�g上传��面和显�C�Z��传成功页面代码内宏V�?
2. UploadAction�c�M��实现上传功能�Ҏ��和上传文件属性介�l��?
3. struts.xml中UploadAction配置�Q�以及字�W�编码、文件��时存放�\径配�|��?
4. 上传后所处�\径和最�l�上传成功后效果展示�?

<%@taglib prefix="s" uri="/struts-tags"%>
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=gb2312">
        <title>上传文�gtitle>
    head>
    <body>

    <s:form action="upload" method="post" enctype="multipart/form-data">
        <tr>

    <td>上传文�g:<s:file name="file">s:file>td>
    tr>
    <tr>
    <td>再次上传文�g:<s:file name="file">s:file>td>
    tr>
    <tr>
    <td align="left"><s:submit name="submit" value="提交">s:submit>td>
    tr>
    s:form>
    body>
html>

<%@taglib prefix="s" uri="/struts-tags"%>
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=gb2312">
        <title>上传�l�果title>
    head>
    <body>
        上传文�g�Q?br />
        <s:property value="fileFileName" />
    body>
html>

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.List;

import org.apache.struts2.ServletActionContext;
import com.opensymphony.xwork2.ActionSupport;

//文�g上传Action
public class UploadAction extends ActionSupport {
    //上传文�g存放路径
    private final static String UPLOADDIR = "/upload";
    //上传文�g集合
    private List<File> file;
    //上传文�g名集�?/span>
    private List<String> fileFileName;
    //上传文�g内容�c�d��集合
    private List<String> fileContentType;

    public List<File> getFile() {
        return file;
    }

    public void setFile(List<File> file) {
        this.file = file;
    }

    public List<String> getFileFileName() {
        return fileFileName;
    }

    public void setFileFileName(List<String> fileFileName) {
        this.fileFileName = fileFileName;
    }

    public List<String> getFileContentType() {
        return fileContentType;
    }

    public void setFileContentType(List<String> fileContentType) {
        this.fileContentType = fileContentType;
    }

    public String execute() throws Exception {
        for (int i = 0; i < file.size(); i++) {
            //循环上传每个文�g
            uploadFile(i);
        }
        return "success";
    }

    //执行上传功能
    private void uploadFile(int i) throws FileNotFoundException, IOException {
        try {
            InputStream in = new FileInputStream(file.get(i));
            String dir = ServletActionContext.getRequest().getRealPath(UPLOADDIR);
            File uploadFile = new File(dir, this.getFileFileName().get(i));
            OutputStream out = new FileOutputStream(uploadFile);
            byte[] buffer = new byte[1024 * 1024];
            int length;
            while ((length = in.read(buffer)) > 0) {
                out.write(buffer, 0, length);
            }

            in.close();
            out.close();
        } catch (FileNotFoundException ex) {
            ex.printStackTrace();
        } catch (IOException ex) {
            ex.printStackTrace();
        }
    }
}

struts.xml配置文�g中有��x��件上传的配置�Q?br />




   /jsp/upload.jsp
   /jsp/result.jsp

youngturk 2012-11-29 23:47 发表评论

FCKEditor2.6.3配合Java的��用步�?(后台文本�~�辑�?

youngturk — Tue, 13 Nov 2012 08:36:00 GMT

FCKEditor是一个很好的用于Web��面中的格式化文本编译控件。现在越来越多的论坛的发帖页面中更多的��用了�q�个控�g�Q�我们这里将如何在基于Java的web开发中使用FCKEditor控�g的步骤提供给大家�Q��ؓ的是让更多的java开发者花�Ҏ��的旉��d��重复力_��?

首先��M��载FCKEditor2.6.3�Q�当然本文编写的时候，�q�个是最新版本，也许你现在看到的已经是更新的版本了，那么可能某些配置办法已经变化了，本文也将跟进以保持最新动态，相反如果你��用的旧版本的控�g�Q�其配置和��用方法也有所区别�Q�，下蝲地址�Q�http://www.fckeditor.net/download�Q�我们需要下载两个文�?br />
�W�一是FCKeditor_2.6.3.zip�Q�就是FCKEditor的控�Ӟ��

�W�二是FCKeditor.Java�Q�fckeditor-java-2.4.1-bin.zip�Q�，��是在Java代码中��用FCKEditor的相兛_��L��Q?

有了�q�两个文�Ӟ��使用FCKEditor的基��具备了�Q�接下来我们要做两�g事情�Q�一件事情就是要把FCKEditor控�g攑ֈ�web��目中，�q�个控�g是用于网��늚��Q�所以其代码是��用JavaScript脚本�~�写的，需要和web�|�页一赯��下蝲的浏览器上才能执行，�W�二件事情就是这个网��上的控件因为支持图片的上传与下载，所以在上传与下载的时候需要服务端的支持，那么我们我的java服务端如何支持这个控件的工作呢？FCKEditor自��n提供了相关的java工具�Q�就是我们下载的�W�二个文件。因此我们要做的�W�二件事情就是在服务端配�|�java工具�Q��得FCKEditor控�g在处理上传图片时能够正确工作�?

接下来我们就开始对配置FCKEditor控�g�q�行两项工作�Q?

�W�一�Q�解压羃FCKeditor_2.6.3.zip�Q�在其中我们能找��C��个文件夹叫fckeditor�Q�那么将�q�个文�g�Ҏ��个复制到你的web应用的根目录下，��是存放jsp��面的地斏V�?

�W�二�Q�解压羃fckeditor-java-2.4.1-bin.zip�Q�将�q�样几个jar文�g复制到web应用的WEB-INF\lib目录中（commons-fileupload-1.2.1.jar�Q�commons-io-1.3.2.jar�Q�java-core-2.4.1.jar�Q�slf4j-api-1.5.2.jar�Q�slf4j-simple-1.5.2.jar�Q�，其中最后一个文件在�q�个zip包中可能不存在，那么你可以去�q�个链接地址下蝲一个文件叫fckeditor-java-2.4.1-bin.zip (下蝲地址�Q�http://sourceforge.net/project/showfiles.php?group_id=75348&package_id=129511)�Q�在�q�个war文�g中的lib中存在上�q�的5个jar文�g�Q�其实在war中也包含了FCKEditor控�g的内容，也就是说如果你只是下载了war也可以了。然后在classpath目录中创��Z��个名叫�ؓfckeditor.properties的文�Ӟ��文�g中放�|�一行内容�ؓ�Q�connector.userActionImpl=net.fckeditor.requestcycle.impl.UserActionImpl�Q?

在web.xml中添加一个Servlet的配�|�，配置内容如下�Q?

Connector
net.fckeditor.connector.ConnectorServlet
1

Connector
/fckeditor/editor/filemanager/connectors/*

好了�Q�现在你已经完成了配�|�的�q�程�Q�接下来我们需要在jsp中��用FCKEditor控�g了，在需要��用这个控件的jsp文�g的开头添加标�{�ֺ�的引入语句：<%@ taglib uri="http://java.fckeditor.net" prefix="FCK" %>�Q�在使用控�g�q�行文本格式化输入的地方�Q�原来你可能使用的textarea标签�Q��用如下的内容来替换原来的输入控�g�Q?

控�g中要昄��的初始内�?

其中instanceName属性的值就相当于form表单中的input的name倹{��就是表单提交时候的键值对中的键的名字�?

youngturk 2012-11-13 16:36 发表评论

youngturk — Tue, 13 Nov 2012 03:04:00 GMT

web.xml�?.4版本的默认导入的standerd.jar,和jstl.jar是��用el表达式的包是启动�?br />�?.5版本的web.xml中默认是关闭�?br />所以在2.5的所有jsp中需要启动一�?br />�?lt;% page isELIgnored="false"%>

el表达式不起作�?/span>

今天用el表达式，老是得不到后��C��q�来的倹{��该导入的jar包和标签库也都导入了。还是不起作用。后来在�|�上扑ֈ�一��文章。解决了。原来是版本的问题。现在脓一下�?/span>

tomcat5.0的版�? 使用了低版本�Q�只求稳定�?/span>

web.xml

    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

    xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"

    version="2.4">

2.4版本默认启用el表达式，如果使用2.5版本�Q�默认el表达式是关闭�?/span>

    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="2.5"

    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee

    http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">

那么对应2.5的web.xml --> jsp��面里应该增�?lt;%@ page isELIgnored="false"%>

一句话�Q�凡是部�|�描�q�文仉��循Servlet2.4规范的WEB应用�Q�EL表达式的计算默认是启用的�Q�而未遵��@的，则EL表达式的计算默认是禁用的�?/span>

所以解��x��案还可以是：��web.xml中的DTD(文档�c�d��定义)攚w��2.4的版�?/span>

我用的是在公共页中加�?lt;%@ page isELIgnored="false"%>�Q�然后每个页面引入公共页。问题解决了�?/span>

youngturk 2012-11-13 11:04 发表评论

框架搭徏好后,没有详细的错误信�?主页无法讉K��.用tomcat去调�?没有详细log..

youngturk — Thu, 08 Nov 2012 08:19:00 GMT

�q�两天在搭徏struts2+spring+hibernate框架的过�E�中遇到如题的错误，在百度和��h��上查了两天，以致快到了崩溃的边缘。最后还是解决了。这个问题的出现�Q�原因有很多�Q�在�q��ȝ��如下�Q�以供分享：

框架搭徏好后�Q�启动服务器出现如下的信息：

log4j:WARN No appenders could be found for logger (org.apache.commons.digester.Digester).

log4j:WARN Please initialize the log4j system properly.

2009-11-6 21:39:17 org.apache.catalina.core.StandardContext start

严重: Error listenerStart

2009-11-6 21:39:17 org.apache.catalina.core.StandardContext start

严重: Context startup failed due to previous errors

2009-11-6 21:39:17 org.apache.catalina.core.StandardHostDeployer install

信息: Installing web application at context path /tomcat-docs from URL file:D:/server/Tomcat 5.0/webapps/tomcat-docs

2009-11-6 21:39:17 org.apache.catalina.core.StandardHostDeployer install

信息: Installing web application at context path /webdav from URL file:D:/server/Tomcat 5.0/webapps/webdav

。。。�?br />

可能出错的地方：

1.web.xml文�g web应用部��v描述�W�，里面的部�|�的xml文�g或者类�Q�如果这些找不到��׃��发生startup failed due to previous errors错误�?br />
2.如果在应用spring的话�Q�在配置文�gapplicationContext.xml中定义的�c�R��xml文�g找不��C��会报�q�个错误�?br />
3.在web.xml�Q�struts.xml�Q�applicationContext.xml文�g中自�w�有��M��一炚w��误都可能引�v上面的这个问题，而不仅仅是附带的文�g错误��D��?br />
4.如果使用ibatis的话�Q�在SqlMapConfig.xml中定义的xml文�g找不��C��会报�q�个错误。（hibernate的配�|�在整合spring的时候��用spring的配�|�文�Ӟ��

5.JDK的版本问题，最好��用JDK5.0 或者更高的版本�?br />
6.Eclipse和tomcat的版本兼定w��?br />
7.框架整合的过�E�中在导入到lib下的jar包冲�H�也可能产生该错误�?br />
8.jar包的�~�少以及jar包的版本也可产生该错误�?br />
9.其他的原�?br />

解决该问题的途径�Q?br />
�׃��上面问题可能已经是web服务器内部��生了错误�Q�而且IDE中的Log信息较少�Q�问题的解决很难入手�?br />
而该问题的��生经�怼��D��面跌��{��L��不到文�g�?Http 404 错误。。。。�?br />
可以通过在tomcat中添加log文�g来让log信息提示的更�_��一些，卌��|�log输出的等�U��?br />
1.tomcat的安装�\径下tomcat home下的common文�g夹下的classes文�g夹中创徏log4j.properties文�g�Q�即

。。。Apache Software Foundation/Tomcat 5.5/common/classes

log4j.properties配置如下�Q�配�|�是转蝲�Q�：

log4j.rootLogger=info,Console,R

log4j.appender.Console=org.apache.log4j.ConsoleAppender

log4j.appender.Console.layout=org.apache.log4j.PatternLayout

#log4j.appender.Console.layout.ConversionPattern=%d [%t] %-5p %c - %m%n

log4j.appender.Console.layout.ConversionPattern=%d{yy-MM-dd HH:mm:ss} %5p %c{1}:%L - %m%n

log4j.appender.R=org.apache.log4j.DailyRollingFileAppender

log4j.appender.R.File=${catalina.home}/logs/tomcat.log

log4j.appender.R.layout=org.apache.log4j.PatternLayout

log4j.appender.R.layout.ConversionPattern=%d{yyyy.MM.dd HH:mm:ss} %5p %c{1}(%L):? %m%n

log4j.logger.org.apache=info,R

log4j.logger.org.apache.catalina.core.ContainerBase.[Catalina].[localhost]=DEBUG, R

log4j.logger.org.apache.catalina.core=info,R

log4j.logger.org.apache.catalina.session=info,R

2.��log4j-1.2.15.jar和commons-logging.jar包拷贝到。。。Apache Software Foundation/Tomcat 5.5/common/lib下即可�?br />

做好上面两步�Q�启动服务器的时候，会在tomcat的安装�\径下的。。Apache Software Foundation/Tomcat 5.5/logs下自动的

生成tomcat.log文�g以记录日志信息�?br />
注：tomcat.log文�g中的日志信息会记载很多，如果�q�大��可能��生磁盘空间不��的问题�Q�徏议定时的清除日志信息�?br />

通过上面的日志文件信息可以定位到比较具体的问题根源，在仔�l�的查看问题一一�ȝ��卛_��解决�?br />

我在搭徏框架之后�Q�在web.xml文�g中配�|�的�Ƣ迎��面昄��的时候报404的错误，通过上面的途径扑ֈ�了两个错误，虽然�׃��两天的时��_��最�l�还是解决了�?br />

youngturk 2012-11-08 16:19 发表评论

报getOutputStream() has already been called for this response �q�个错误

youngturk — Mon, 24 Sep 2012 09:33:00 GMT

getOutputStream() has already been called for this response �q�个错误遇到�q�不��次�Q�网上看到大多不能解决问题�?br />    下面两点是我自己�ȝ��出来的：
    1、在我们应用验证码时�Q�都会用到字节流response.getOutputStream()来将验证码输出，但是jsp��面自己最后会调用字符��JspWriter的out()�Ҏ��页面的内容输出。通过查看servlet的API我们可以看到知道�Q�在servlet中不能够同时利用�q�两个流输出�Q�解军_��法将验证码写在servlet中，具体见下面�?br />    2、相信请求�{�? request.getRequestDispacher().forward() )和请求蟩�? response.sendRedirect() )的区别大安��知道。其中request.getRequestDispacher().forward() �Ҏ��的调用者与被调用者之间共享相同的request对象和response对象�Q�它们属于同一个访问请求和响应�q�程。JSP��面转译为的_servlet会最后调用releasePageContext()�Ҏ��( All PageContext objects obtained via this method shall be released by invoking releasePageContext().)释放我们��面所有的实体对象�Q�当我们的调用者有��面输出�Ӟ��׃��抛出�q�个异常。具体原因也没有弄清楚，各位大侠如果谁知道可以告知一下。其实验证码也是同一个原理，如果我们��验证码的代码写在jsp��面中，因�ؓjsp��面会调用JspWriter的out()�Ҏ��内容输出，同时我们的图片又调用了response.getOutputStream()�Ҏ��因此会抛��个异常；如果我们��验证码写在servlet中，��׃��会同时��用两�U�输��Z��׃��会出错。有时即使调用者页面没有输出，也会抛出�q�个异常�Q�仔�l�看jsp转译以后的源码发现输��Z��换行�Q�因此，我们最好把调用者页面的%>�?lt;%之间换行��L��Q�把%>�?lt;%直接写在一赗��?br />    另外�Q�如果我们实在要在jsp中用到response.getOutputStream()�Q�比如验证码、jspSmartUpload�Q�我们需要在最后加入如下代码：
        response.reset();
        out.clear();
        out=pageContext.pushBody();

youngturk 2012-09-24 17:33 发表评论

excel文�g下蝲,数据库字�D�datafiled��?-JS URL传值给servlet��q��

youngturk — Thu, 20 Sep 2012 09:04:00 GMT

1 //javascript里面加密两次�Q�两�ơ才可以的�? var url = "servlet/getText?name=" + encodeURI(encodeURI(name));
<script language="javascript" type="text/javascript">
        function show()
        {
         var name="test";
         var admin="ok";
         var url = "http://localhost:7001/sosuo/ggld/fleet?reloadVessel="
           + encodeURI(encodeURI(name))+"&reloadVoyage="+ encodeURI(encodeURI(admin));
            window.open(url);
        }
    script>

1 //在java里面�Q�通过指定的编码解密即可�? String name = URLDecoder.decode(request.getParameter("name"),"utf-8");

web.xml配置:
<servlet>         <servlet-name>fleetDataDownloadservlet-name>        <servlet-class>com.cenin.util.FleetDataDownloadservlet-class>    servlet>
<servlet-mapping>        <servlet-name>fleetDataDownloadservlet-name>        <url-pattern>/ggld/fleeturl-pattern>    servlet-mapping>

DataDownload.java��面:

package com.cenin.util;

import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.net.*;
import java.sql.*;

import org.apache.commons.digester.Digester;
import org.apache.log4j.Logger;
import com.cenin.database.DBManager;

public class DataDownload  extends HttpServlet
{
    private static   Logger logger = Logger.getLogger(DataDownload .class);

    public void init(ServletConfig config) throws ServletException
    {
        super.init(config);
        try
        {
        }
        catch(Exception ex)
        {
            logger.info(ex.getMessage());
        }

    }
    public void doGet(HttpServletRequest request, HttpServletResponse response)  throws ServletException, IOException
    {
        doPost(request,response);
    }
    public void doDownload(HttpServletRequest request, HttpServletResponse response, String fileName, String vessel, String voyage)
    {
        try
        {

            response.reset();
            response.setContentType("application/vnd.ms-excel");
            response.setHeader("Content-Disposition", "inline; filename=\""+ fileName  + "\"");
            ServletOutputStream sos = response.getOutputStream();
            String title = "数据导出";

            String[] fieldTitles = {"船名", "航次", "提单�?, "��号", "铅封�?, "��型", "货名", "重量", "体积", "发货�?, "收货�?, "装货�?, "卸货�?};
            String[] fieldNames = {"szVessel", "szVoyage", "szBlNo", "szCtnNo", "szSealNo", "szCtnType", "szCargoName", "fWeight", "fVolume", "szReceiver", "szSender", "szLoadPortCode", "szDischargePortCode"};
            int[] widths = {100, 50, 100, 120, 120, 50, 100, 50, 50, 80, 80, 80, 80};

            Connection conn = DBManager.getInstance().getConnection();
            Statement stmt=conn.createStatement();
            String sql = "select * from NmhContainer where szVessel='" +
                    vessel + "' and szVoyage='" + voyage + "'"; // and szBlNo='" + blno + "'";
            ResultSet rs = stmt.executeQuery(sql);
            OutputUtil.excelOutput(title, fieldTitles, fieldNames, widths, rs, sos, "ISO-8859-1", "GBK");

            DBManager.getInstance().freeDBResource(rs, stmt, conn);

        }
        catch(Exception ex)
        {
            logger.info(ex.getMessage());
        }

    }
    public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
    {
        try
        {
            String vessel = request.getParameter("reloadVessel");
            String voyage = request.getParameter("reloadVoyage");
            //String blno = request.getParameter("reloadBlno");
            String name = vessel + "_" + voyage + "_" + ".xls";
            doDownload(request, response, name, vessel, voyage);

        }
        catch(Exception ex)
        {
            logger.info(ex.getMessage());
        }



    }
}

OutputUtil.java��面:

package com.cenin.util;
/*
* 输出PDF, Excel�{�格�?br /> * 2005.5.12 by chenyong@cenin
* 2005.12.19
*/

import jxl.Workbook;
import jxl.write.*;
import com.lowagie.text.Document;
import com.lowagie.text.Rectangle;
import com.lowagie.text.Font;
import com.lowagie.text.PageSize;
import com.lowagie.text.HeaderFooter;
import com.lowagie.text.Phrase;
import com.lowagie.text.Element;
import com.lowagie.text.Table;
import com.lowagie.text.pdf.*;
import java.io.*;
import java.util.*;
import java.sql.*;
import org.apache.log4j.Logger;

public class OutputUtil
{
    private static Logger logger = Logger.getLogger(OutputUtil.class);
    /*******************************************************
    * pdf输出表格
    * title为pdf head
    * fieldtitles�?nbsp;表头��目名称数组
    * filenames �?nbsp; 对象属性名数组
    * widths �?nbsp;宽度�Q�数�l?br />    * rs为resultset
    * os ��出流
    * codefrom , codeto 如果需要编码�{�?br />    *******************************************************/
    public static void excelOutput(String title, String[] fieldtitles, String[] fieldnames, int[] widths, ResultSet rs, OutputStream os, String codefrom, String codeto)
    {

        try
        {
            int fieldnumber = fieldnames.length; //, cellnumber = fieldnumber*5;
            if(fieldnumber!=fieldtitles.length||fieldnumber!=fieldnames.length)
                return;

            WritableWorkbook workbook = Workbook.createWorkbook(os);
            WritableSheet sheet = workbook.createSheet(title, 0);

            //add field title
            for(int i=0;i<fieldnumber;i++)
            {
                //String temp = new String(fieldtitles[i].getBytes(codefrom), codeto);
                sheet.addCell(new Label(i, 0, fieldtitles[i]));

            }
            //add values
            int i=0;
            while(rs.next())
            {
                for(int j=0; j                {
                    if(rs.getString(fieldnames[j])!=null)
                    {
                        //String temp1 = rs.getString(fieldnames[j]);
                        String temp = new String(rs.getString(fieldnames[j]).getBytes("ISO-8859-1"), "GBK");
                        sheet.addCell(new Label(j, i+1, temp));
                    }
                    else
                        sheet.addCell(new Label(j, i+1, ""));
                }
                i++;
            }
            //write to excel
            workbook.write();
            workbook.close();

        }
        catch(Exception e)
        {
            logger.info(e.toString());
        }

    }

}

/*例子
FileOutputStream os = new FileOutputStream("e:\\a.xls");
String[] titles = {"�pȝ��~�号","员工","用户帐号"};
String[] fieldnames = {"lsystemUserId","staff.szname","szaccount"};
int[] widths = {20,20,20};
//OutputUtil.pdfOutput("my pdf输出", titles, fieldnames, widths,objectList,os);
//OutputUtil.excelOutput("excel输出", titles, fieldnames, widths,objectList,os);

*/

youngturk 2012-09-20 17:04 发表评论

youngturk — Wed, 12 Sep 2012 06:16:00 GMT

request=new URLRequest("http://localhost:7002/greatSpringCXFWebservice/FileUploaded");
                var variables:URLVariables = new URLVariables();
                var userName = Setting.userInfo.userLoginName;
                    variables.filedir = Setting.userInfo.userLoginName;
                    request.data=variables;
                     request.method=URLRequestMethod.GET;//��Z��后台java创徏用户自己的图片库
file.upload(req

flex:
file=new FileReference();
                file.addEventListener(Event.SELECT,onFileSelect);
                file.addEventListener(IOErrorEvent.IO_ERROR,onFileIOError);
                file.addEventListener(DataEvent.UPLOAD_COMPLETE_DATA,onUploadComplete);

java:
protected void processRequest(HttpServletRequest request,
            HttpServletResponse response) throws ServletException, IOException {
        System.out.println("to upload picture !");
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();

        // 保存文�g到服务器�?br />
        DiskFileItemFactory factory = new DiskFileItemFactory();
        factory.setSizeThreshold(4096);
        ServletFileUpload upload = new ServletFileUpload(factory);
        upload.setSizeMax(maxPostSize);
        String filedir = request.getParameter("filedir");
        try {
            List fileItems = upload.parseRequest(request);
            Iterator iter = fileItems.iterator();
            while (iter.hasNext()) {
                FileItem item = (FileItem) iter.next();
                if (!item.isFormField()) {
                    String name = item.getName();
//                    String filedir = item.get();//获取文�g�?br />                    System.out.println(name);
                    try {
                        File file = new File("D:\\a\\"+filedir);//创徏分��目录
                        file.mkdir();

                        item.write(new File(uploadPath+filedir+"\\" + name));
                        // SaveFile s = new SaveFile();
                        // s.saveFile(name); "{\"path\": "[ {"name"}]}"
                        String path = "[path:{"+name+"}]";
                        out.print(path);//用来�q�回flex的DataEvent.UPLOAD_COMPLETE_DATA��h��

                        out.close();

                    } catch (Exception e) {
                        e.printStackTrace();
                        out.print("{\"error\": "+name+"}");
                        out.close();

                    }
                }
            }
        } catch (FileUploadException e) {
            out.print("{\"error\":"+e.getMessage()+"}");
            out.close();
            e.printStackTrace();
            System.out.println(e.getMessage() + "�l�束");
        }
    }

uest);

java接收

youngturk 2012-09-12 14:16 发表评论

Flex ��Z��Http方式上传囄��(�?

youngturk — Tue, 11 Sep 2012 14:36:00 GMT

摘要: Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->首先下蝲 commons-fileupload-1.2.1.jar和commons-io-1.1.jar flex端代码：阅读全文

youngturk 2012-09-11 22:36 发表评论

web.xml中servlet控制参数�Ҏ��

youngturk — Tue, 22 May 2012 07:08:00 GMT

web.xml中servlet�Q?/span>

    <servlet>

        <servlet-name>smvcCoreDispatcherservlet-name>
        <servlet-class>org.bluechant.mvc.core.CoreDispatcherControllerservlet-class>
        <init-param>
            <param-name>templateLoaderPathparam-name>
            <param-value>/WEB-INF/viewparam-value>
        init-param>
        <init-param>
            <param-name>defaultEncodingparam-name>
            <param-value>GBKparam-value>
        init-param>
        <init-param>
            <param-name>contextConfigLocationparam-name>
            <param-value>/WEB-INF/smvc_config/smvc-config.xmlparam-value>
        init-param>
        <load-on-startup>1load-on-startup>

     servlet>
    <servlet-mapping>
        <servlet-name>smvcCoreDispatcherservlet-name>
        <url-pattern>*.dourl-pattern>
    servlet-mapping>

    <welcome-file-list>
        <welcome-file>login.htmlwelcome-file>
    welcome-file-list>

web.xml对应的servlet控制java改写�Q?/span>

package org.bluechant.mvc.core;

import java.io.IOException;
import java.io.PrintWriter;
import java.io.UnsupportedEncodingException;
import java.lang.reflect.Method;
import java.util.Enumeration;
import java.util.Locale;
import java.util.Map;

import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.log4j.Logger;
import org.bluechant.mvc.controller.ModelAndView;
import org.bluechant.mvc.core.util.ServletUtils;

import freemarker.template.Configuration;
import freemarker.template.ObjectWrapper;
import freemarker.template.Template;
import freemarker.template.TemplateException;
import freemarker.template.TemplateExceptionHandler;

public class CoreDispatcherController extends HttpServlet {

    private Logger logger = Logger.getLogger(CoreDispatcherController.class);

    private CacheManager cache ;

    private String baseControllerClass = "org.bluechant.mvc.controller.Controller";

    private static final long serialVersionUID = 1L;

    private Configuration cfg ;

    private String templateLoaderPath ;

    private String defaultEncoding ;

    private String contentType ;

    private String contextConfigLocation ;

    private ActionConfig actionCoinfig ;

    public void init(ServletConfig config) throws ServletException {

        super.init(config);
        //super.init(config);

        String absPath = config.getServletContext().getRealPath("/");//获得�pȝ��l�对路径
        System.out.println("absPath:"+absPath);
        //getRealPath("/virtual_dir/file2.txt")应该�q�回"C:\site\a_virtual\file2.txt" 　　getRealPath("/file3.txt")应该�q�回null�Q�因��个文件不存在�?nbsp;
        ///�q�回路径D:\Java\workspaces\helios\newshpt\获得文�g路径
        defaultEncoding = getInitParameter("defaultEncoding");

        templateLoaderPath = getInitParameter("templateLoaderPath");
        //");//从web.xml中获得templateLoaderPath信息�Q�web.xml中对应的路径”/WEB-INF/view“

        contextConfigLocation = getInitParameter("contextConfigLocation");
        System.out.println("contextConfigLocation:"+contextConfigLocation);
        ///获得web.xml文�g中�\径WEB-INF/smvc_config/smvc-config.xml
        actionCoinfig = new ActionConfig();
        actionCoinfig.load(absPath+contextConfigLocation);//文档�q�行解析与读�?
        ///D:\Java\workspaces\helios\newshpt\WEB-INF/smvc_config/smvc-config.xml
        contentType = "text/html;charset="+defaultEncoding ;

        //创徏Configuration实例�Q�Configuration是入口，通过它来获得配置文�g
        cfg = new Configuration();
        //讄��模板路径�Q?nbsp;getServletContext(),所有是所有�\径都能拿到的..
        cfg.setServletContextForTemplateLoading(getServletContext(), templateLoaderPath);
        //cfg.setServletContextForTemplateLoading(arg0, arg1)
        //讄��~�码格式
        cfg.setEncoding(Locale.getDefault(), defaultEncoding);

        //init cache manager
        cache = CacheManager.getInstance();
    }

    public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        processRequest(request,response);
    }

    public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        processRequest(request,response);

    }

    private void showRequestParams(HttpServletRequest request){
        Enumeration en = request.getParameterNames();
        while (en.hasMoreElements()) {
            String paramName = (String) en.nextElement();
            String[] paramValues = request.getParameterValues(paramName);
            if (paramValues.length == 1) {
                String paramValue = paramValues[0];
                if (paramValue.length() != 0) {
                    //map.put(paramName, paramValue);
                    //System.out.println(paramName+"\t"+paramValue);
                }
            }else if(paramValues.length >1 ){//checkbox
                //map.put(paramName, paramValues);
                //System.out.println(paramName+"\t"+paramValues);
            }
        }
    }

    public void processRequest(HttpServletRequest request, HttpServletResponse response){

        try {
            request.setCharacterEncoding(defaultEncoding);
            showRequestParams(request);//waiting back to resolve
        } catch (UnsupportedEncodingException e1) {
            // TODO Auto-generated catch block
            e1.printStackTrace();
        } // set request encoding

        ModelAndView mv = analyzeRequest(request);
        try {
            invokeActionHandler(mv,request);
            if(mv.getViewPath().endsWith(".ftl")){
                invokeViewResolverHandler(mv , response , request);
            }else{
                response.sendRedirect(mv.getWebroot()+mv.getViewPath());
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public ModelAndView analyzeRequest(HttpServletRequest request){
        ModelAndView modelAndView = new ModelAndView();
        logger.debug("request url path is : "+request.getRequestURI());
        String requestPath = request.getRequestURI(); // /newshpt/account!login.do
        String webroot = request.getContextPath() ; // /newshpt
        System.out.println("request url path is : "+requestPath);
        System.out.println("request webroot path is : "+webroot);
        modelAndView.setWebroot(webroot);
        String actionFullName = requestPath.substring(webroot.length()); // /account!login.do
        System.out.println("actionFullName : "+actionFullName);
        String[] temp = actionFullName.split("!");
        String method = "execute";
        if(temp.length==2){
             method = temp[1].split("\\.")[0];
        }
        System.out.println("method : "+method);
        String actionName = temp[0]; // /demo
        System.out.println("actionName : "+actionName);
        String className = actionCoinfig.getClassName(actionName);
        System.out.println("className :"+className);
        modelAndView.setClassName(className);
        modelAndView.setMethodName(method);
        modelAndView.setAction(actionName);

        return modelAndView ;
    }

    /**
     * invoke the request controller's target method
     * param ModelAndView will be mofified during the process
     * @param mv
     * @param request
     * @throws Exception
     */
    public void invokeActionHandler(ModelAndView mv , HttpServletRequest request) throws Exception{
        String className = mv.getClassName();
        String methodName = mv.getMethodName();
        //load class
        Class controllerClass = cache.loadClass(className);
        Class parentControllerClass = cache.loadClass(baseControllerClass);
        //load method
        Method setRequest = cache.loadMethod(parentControllerClass, "setRequest", new Class[] { HttpServletRequest.class });
        Method setModelAndView = cache.loadMethod(parentControllerClass, "setModelAndView", new Class[] { ModelAndView.class });//org.bluechant.mvc.controller.Controller-setModelAndView@6024418  public void org.bluechant.mvc.controller.Controller.setModelAndView(org.bluechant.mvc.controller.ModelAndView)
        Method targetMethod = cache.loadMethod(controllerClass, methodName, new Class[]{});
        //buiid controller instance and invoke target method
        Object instance = controllerClass.newInstance();
        setRequest.invoke(instance, new Object[] { request });//对带有指定参数的指定对象调用由此 Method 对象表示的基��Ҏ��
        setModelAndView.invoke(instance, new Object[] { mv });
        targetMethod.invoke(instance, new Object[]{});
    }

    /**
     * send data to view model , and generate the view page by FreeMarker
     */
    public void invokeViewResolverHandler(ModelAndView modelAndView , HttpServletResponse response ,HttpServletRequest request){
        //convert session attributes to sessionModel , and push to modelAndView
        Map sessionModel = ServletUtils.sessionAttributesToMap(request.getSession());// userSources=[/admin, /button/custom, /custom, /delivery, /loadShip, /unloadPickUp, /unloadShip]
        modelAndView.put("Session", sessionModel);
        response.setContentType(contentType);
        try {//初始化FreeMarker
            PrintWriter out = response.getWriter();
            Template template = cfg.getTemplate(modelAndView.getViewPath());//取得生成模版文�g
            template.setTemplateExceptionHandler(TemplateExceptionHandler.DEBUG_HANDLER);//setTemplateExceptionHandler
            //set the object wrapper , beanwrapper is the perfect useful objectWrapper instance
            template.setObjectWrapper(ObjectWrapper.BEANS_WRAPPER);// 讄��对象包装�?br />            template.process(modelAndView, out);//模版环境开始蝲�?.
            out.flush();
        } catch (IOException e) {
            e.printStackTrace();
        } catch (TemplateException e) {
            e.printStackTrace();
        }
    }

}

smvc-config.xml文�g:

xml version="1.0" encoding="UTF-8"?>
<smvc-config>
    <action name="/account" class="com.cenin.tjport.shpt.mvc.controller.AccountController"/>
    <action name="/yard" class="com.cenin.tjport.shpt.mvc.controller.DuiCunController"/>
smvc-config>

youngturk 2012-05-22 15:08 发表评论

youngturk — Tue, 22 May 2012 03:21:00 GMT

javax.servlet.ServletContext接口

一�?font face="Arial">servlet上下文是servlet引擎提供用来服务�?/font>Web应用的接口�?/font>Servlet上下文具有名字（它属�?/font>Web应用的名字）唯一映射到文件系�l�的一个目录�?/font>
一�?font face="Arial">servlet可以通过ServletConfig对象�?/font>getServletContext()�Ҏ��得到servlet上下文的引用�Q�如�?/font>servlet直接或间接调用子�c?/font>GenericServlet�Q�则可以使用getServletContext()�Ҏ��?/font>
Web应用�?/font>servlet可以使用servlet上下文得刎ͼ�
1.在调用期间保存和��索属性的功能�Q��ƈ与其�?/font>servlet�׃�n�q�些属性�?/font>
2.��d��Web应用中文件内容和其他静态资源的功能�?/font>
3.互相发送请求的方式�?/font>
4.记录错误和信息化消息的功能�?/font>

ServletContext接口中的�Ҏ��
Object getAttribute(String name)    �q�回servlet上下文中��h��指定名字的对象，或��用已指定名捆�l�一个对象。从Web应用的标准观点看�Q�这��L��对象是全局对象�Q�因为它们可以被同一servlet在另一时刻讉K��。或上下文中��L��其他servlet讉K��?nbsp;
void setAttribute(String name,Object obj)    讄��servlet上下文中��h��指定名字的对象�?nbsp;
Enumeration getAttributeNames()    �q�回保存�?/font>servlet上下文中所有属性名字的枚�D�?nbsp;
ServletContext getContext(String uripath)    �q�回映射到另一URL�?/font>servlet上下文。在同一服务器中URL必须是以“/”开头的�l�对路径�?nbsp;
String getInitParameter(String name)    �q�回指定上下文范围的初始化参数倹{��此�Ҏ��?/font>ServletConfig�Ҏ��名称不一��P��后者只应用于已�~�码的指�?/font>servlet。此�Ҏ��应用于上下文中所有的参数�?nbsp;
Enumeration getInitParameterNames()    �q�回�Q�可能�ؓ�I�）指定上下文范围的初始化参数值名字的枚�D倹{�?nbsp;
int getMajorVersion()    �q�回此上下文中支�?/font>servlet API�U�别的最大和最��版本号�?nbsp;
int getMinorVersion()
String getMimeType(String fileName)    �q�回指定文�g名的MIME�c�d��。典型情冉|��Z��文�g扩展名，而不是文件本�w�的内容�Q�它可以不必存在�Q�。如�?/font>MIME�c�d��未知�Q�可以返�?/font>null�?nbsp;
RequestDispatcher getNameDispatcher(String name)    �q�回��h��指定名字或�\径的servlet�?/font>JSP�?/font>RequestDispatcher。如果不能创�?/font>RequestDispatch�Q�返�?/font>null。如果指定�\径，必须�?/font>“/”开��_��q�且是相对于servlet上下文的�剙��?nbsp;
RequestDispatcher getNameDispatcher(String path)
String getRealPath(String path)    �l�定一�?/font>URI�Q�返回文件系�l�中URI对应的绝对�\径。如果不能进行映��，�q�回null�?nbsp;
URL getResource(String path)    �q�回相对�?/font>servlet上下文或��d��URL的输入流的指定绝对�\径相对应�?/font>URL�Q�如果资源不存在则返�?/font>null�?nbsp;
InputStream getResourceAsStream(String path)
String getServerInfo()    �q�顺servlet引擎的名�U�和版本受��?nbsp;
void log(String message)
void log(String message,Throwable t)    ��一个消息写�?/font>servlet注册�Q�如果给�?/font>Throwable参数�Q�则包含栈轨�q�V�?nbsp;
void removeAttribute(String name)    �?/font>servlet上下文中删除指定属性�?nbsp;

getServletContext()�?/font>getServletConfig()的意�?/font>

getServletConfig() �?/font>servlet初始化时�Q�容器传递进来一�?/font>ServletConfig对象�q�保存在servlet实例中，该对象允许访问两��内容：初始化参数和ServletContext对象�Q�前者通常由容器在文�g中指定，允许在运行时�?/font>sevrlet传递有兌��度信息，比如�?/font>getServletConfig().getInitParameter("debug")后者�ؓservlet提供有关容器的信息�?/font>

getServletContext()�?/font>getServletConfig()的意�?/font>

getServletContext()�?/font>getServletConfig()的意�?/font>2007-07-09 11:10.getServletContext() 一�?/font>servlet可以使用getServletContext�Q�）�Ҏ��得到web应用�?/font>servletContext 卌��?/font>getServletContext的一些方法来获得一些�?nbsp;比如�?/font>getServletContext().getRealPath("/")来获得系�l�绝对�\�?nbsp;getServletContext().getResource("WEB-INF/config.xml")来获�?/font>xml文�g的内宏V�?/font>

youngturk 2012-05-22 11:21 发表评论