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[转]Struts 2.0 解读�W�记

Fri, 09 Mar 2007 08:55:00 GMT

struts2 的demo 中的employee层可以清晰的暂时struts希望�l�开发者带来的架构

--------------------------

EmployeeAction <-- AbstractCRUDAction (web �?
   ^
   |
EmployeeDao <-- AbstractDao <-- Dao (Domain 层，demo中也作�ؓ(f��)service存在于spring容器�?
   ^
   |
Employee <--IDEntity

--------------------------

struts.xml 配置

            /empmanager/listSkills.jsp



            /empmanager/editSkill.jsp




            /empmanager/editSkill.jsp
            edit.action?skillName=${currentSkill.name}


            /empmanager/editSkill.jsp
            edit.action?skillName=${currentSkill.name} �q�里展现�?ji��n)struts2��h��良好的url�Ҏ(gu��)��，比�vww的crud!edit让�h舒服多了(ji��n)

            /empmanager/listEmployees.jsp



         {1}
            /empmanager/editEmployee.jsp
            execute


            /empmanager/editEmployee.jsp
            edit-${currentEmployee.empId}.action


            /empmanager/editEmployee.jsp
            edit-${currentEmployee.empId}.action



-----------------------------
每一个action有自��q��properties文�g�Q�非�怾�于管理和代码生成�Q?br />当然也有一个全局的globalMessages.properties来存放一些save,delete�q�些都一��L(f��ng)��字符
employee=Employee
employee.firstName=First Name
employee.lastName=Last Name
employee.description=Description

employee.id.required=Id is required
employee.lastName.required=Last Name is required
employee.birthDate.required=Birthdate is required
employee.backtolist=Back to Employee List

每个action自己的validation









            true

--------------------------------
DAO是spring的bean,spring默认作�ؓ(f��)struts2的业务组件容�?br />在struts.properties中struts.objectFactory = spring

�׃��q�里是autowire�Q�Autowiring means to look for objects defined in Spring with the same name as your object property
所以action中所有用到IoC的地方，都会(x��)自动注入�Q�因为action本质也是bean�Q�下面会(x��)讲到�Q?/p>

wire有四�U�方法：(x��)name�Q?type�Q?auto�Q?constructor

----------------------------------
struts2中的每一个action,也就是struts.xml里面声明的action,最�l�都��作为spring中的一个bean完成��h��?br />如果你不做额外的讑֮��Q�struts2�?x��)自动生成这个bean�?br />如果你有�Ҏ(gu��)��的需要，�q�可以在applicationContext.xml自己声明�q�个bean
你必��L��据需要来军_��是否再次声明
struts.xml
    "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
    "

        �q�个foo�Q�在applicationConext.xml中没有声明，struts�?x��)自动生成一个bean
            foo.ftl

                   �q�个foo�Q�在applicationConext.xml中声明了(ji��n)�Q�struts�?x��)��用下面配�|?br />            bar.ftl

applicationConext.xml

...

-------------------------
无缝集成ajax
只要声明�?ji��n)theme="ajax"�Q�该标签控�g的操作就被�{换成ajax�Q�请求发送到AjaxRemoteForm
Configured Editor configuration:


        textGroup;|;justifyGroup;|;listGroup;|;indentGroup

------------------------
集成�?ji��n)多�U�模�?br />jsp,velocity,freemaker

------------------------

struts2 �l�承�?ji��n)ww2的优良传�l�，�q�且摈弃�?ji��n)ww2的一些缺��P��也可以看成是对ww2的一�ơ重购�?br />无疑是目前最��L��Q�最强大的MVC框架�?ji��n)�?/p>

它实��C��(ji��n)和spring的完��结�?/p>

集成�?ji��n)ajax�Q�dojo+dwr�Q?/p>

其插件支持jasperreports�Q�jfreechart

放水老�?/a> 2007-03-09 16:55 发表评论

Mon, 18 Dec 2006 10:55:00 GMT

今天�Q�应��目需求，涉及(qi��ng)到需要在一个页面里动态添加�h员信息，表格的动态增删，借助JS控制�Q�先在网上查�?ji��n)几个类似的�C�Z��Q�后来又改了(ji��n)改，��成�?ji��n)现在用的�?br /> JS部分代码如下�Q?br />

jsp��面部分代码�Q?br />

ActionForm部分代码�Q?br />
//伤亡人员
    private String age[];
    private String casualtyInfo[];
    private String contractTypeDetail[];
    private String education[];
    private Integer id;
    private String casualtyName[];
    private String sex[];
    private String useForm[];
    private String useKind[];
    private String workTime[];

    public String[] getAge() {
        return age;
    }

    public void setAge(String age[]) {
        this.age = age;
    }

    public void setWorkTime(String workTime[]) {
        this.workTime = workTime;
    }

    public void setUseKind(String useKind[]) {
        this.useKind = useKind;
    }

    public void setUseForm(String useForm[]) {
        this.useForm = useForm;
    }

    public void setSex(String sex[]) {
        this.sex = sex;
    }

    public void setcasualtyName(String casualtyName[]) {
        this.casualtyName = casualtyName;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public void setEducation(String education[]) {
        this.education = education;
    }

    public void setcontractTypeDetail(String contractTypeDetail[]) {
        this.contractTypeDetail = contractTypeDetail;
    }

    public void setCasualtyInfo(String casualtyInfo[]) {
        this.casualtyInfo = casualtyInfo;
    }

    public String[] getCasualtyInfo() {
        return casualtyInfo;
    }

    public String[] getcontractTypeDetail() {
        return contractTypeDetail;
    }

    public String[] getEducation() {
        return education;
    }

    public Integer getId() {
        return id;
    }

    public String[] getcasualtyName() {
        return casualtyName;
    }

    public String[] getSex() {
        return sex;
    }

    public String[] getUseForm() {
        return useForm;
    }

    public String[] getUseKind() {
        return useKind;
    }

    public String[] getWorkTime() {
        return workTime;
    }
Action部分代码�Q?/strong>

/**
         * 录入伤亡人员详细信息
         */

        int counter = form.getcasualtyName().length;
        AccCasualtyPersonDAO perDAO = new AccCasualtyPersonDAO();
       AccCasualtyPersonInfo per = new AccCasualtyPersonInfo();
        for (int j = 1; j            per.setAccNo(accNo);
            per.setAge(Integer.valueOf(form.getAge()[j]));
            System.out.println("age:"+form.getAge()[j]);
            per.setCasualtyInfo(form.getCasualtyInfo()[j]);
             System.out.println("CasualtyInfo:"+form.getCasualtyInfo()[j]);
            per.setContractType(form.getcontractTypeDetail()[j]);
            per.setEducation(form.getEducation()[j]);
            per.setName(form.getcasualtyName()[j]);
            per.setSex(form.getSex()[j]);
            per.setUseForm(form.getUseForm()[j]);
            per.setUseKind(form.getUseKind()[j]);
            per.setWorkTime(form.getWorkTime()[j]);
           if (!perDAO.addAccCasualtyPerson(per)) {
                return mapping.findForward("inputKuaibaofail");
            }
    每行里面的项�Q�都是必��d��的，�W�合��目的需求。此外，也可不用Struts��装同名参数的功能，可以用JavaScript来做传倹{�?/p>

放水老�?/a> 2006-12-18 18:55 发表评论

javax.servlet.ServletException: Cannot retrieve mapping for action /showProLists

Sun, 16 Jul 2006 10:39:00 GMT
今天在用到Struts开发一个应用的时候遇到错误：(x��)
exception
javax.servlet.ServletException: Cannot retrieve mapping for action /showProLists org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:846) org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:779) org.apache.jsp.apply.showProList_jsp._jspService(showProList_jsp.java:193) org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94) javax.servlet.http.HttpServlet.service(HttpServlet.java:810) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236) javax.servlet.http.HttpServlet.service(HttpServlet.java:810) org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1069) org.apache.struts.action.RequestProcessor.processForwardConfig(RequestProcessor.java:455) org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:279) org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482) org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:507) javax.servlet.http.HttpServlet.service(HttpServlet.java:697) javax.servlet.http.HttpServlet.service(HttpServlet.java:810) org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) 起初�Q�怀疑是:struts-config.xml里的action配置错误�Q�后来仔�l�检查，发现无错误，排除此疑�Q?br />用到的action�Q?br />public class ShowProListAction extends Action {
    public ActionForward execute(ActionMapping mapping,
                                 ActionForm actionForm,
                                HttpServletRequest request,
                                 HttpServletResponse Response) {
      // ShowProListForm form = (ShowProListForm)actionForm;

       String temp=request.getParameter("testSecID");
       int ID=Integer.parseInt(temp);
       System.out.println("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"+ID);
       ShowProListDAO prolistDAO=new ShowProListDAO();
       ArrayList arr=new ArrayList();
       arr=prolistDAO.getProList(ID);
       if(arr==null){
           return mapping.findForward("null");
       }
       if(arr !=null){
           if(arr.size()==0){
               return mapping.findForward("null");
           }
           else{
               request.setAttribute("showProList",arr);
               request.setAttribute("stationID",temp);
               ArrayList proList=(ArrayList)request.getAttribute("showProList");
               for(int i=0;i               ShowProList projects=(ShowProList)proList.get(i);
               System.out.println(projects.getProjectName());
               }
               System.out.println(temp);

               return mapping.findForward("success");
           }
       }
return mapping.findForward("fail");
    }
}
System.out.println(temp)和System.out.println(projects.getProjectName());
均正常输出。怀疑，return mapping.findForward("success")怀疑这一步蟩转错误？
修改�q�若�q�遍struts-config.xml文�g�Q�依旧未果！�Q�！�Q�！

最后，dxian来帮忙检查，发现实际上，该action�c�，完全通过�?ji��n)。是在蟩转到下个jsp��面后，jsp��面里有一表单form�Q?br />部分代码如下�Q?br />showProListAction.do

<%
ArrayList proList=(ArrayList)request.getAttribute("showProList");
%>
因�ؓ(f��)�Q�刚开始写该jsp��面�Ӟ��是copy�?ji��n)一个过来直接改的，忘记把里的form��L��Q�结果，发生�?ji��n)错误�?br />��x��Q�该问题解决�Q�先前都没遇到过�q�个情况�Q�花�?ji��n)好多时间在�q�个上面�?br />末了(ji��n)�Q�要感谢下帮�q�我无数�ơ的 dxian�Q�）(j��)

放水老�?/a> 2006-07-16 18:39 发表评论