用String crlf=System.getProperty( "line.separator ")，這個(gè)crlf就是一個(gè)回車換行符，這樣跨OS也不用怕了。不建議用硬編碼如\r\n。
/**
* <pre>
* Title: HttpRequestProxy.java
* Project: HP-Common
* Type: com.hengpeng.common.web.HttpRequestProxy
* Author: benl
* Create: 2007-7-3 上午03:07:07
* Copyright: Copyright (c) 2007
* Company:
* <pre>
*/
imp
ort java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Map.Entry;
import org.apache.log4j.Logger;
/**
* <pre>
* HTTP請求代理類
* </pre>
*
* @author benl
* @version 1.0, 2007-7-3
*/
public class HttpRequestProxy
{
/**
* 連接超時(shí)
*/
private static int connectTimeOut = 5000;
/**
* 讀取數(shù)據(jù)超時(shí)
*/
private static int readTimeOut = 10000;
/**
* 請求編碼
*/
private static String requestEncoding = "GBK";
private static Logger logger = Logger.getLogger(HttpRequestProxy.class);
/**
* <pre>
* 發(fā)送帶參數(shù)的GET的HTTP請求
* </pre>
*
* @param reqUrl HTTP請求URL
* @param parameters 參數(shù)映射表
* @return HTTP響應(yīng)的字符串
*/
public static String doGet(String reqUrl, Map parameters,
String recvEncoding)
{
HttpURLConnection url_con = null;
String responseContent = null;
try
{
StringBuffer params = new StringBuffer();
for (Iterator iter = parameters.entrySet().iterator(); iter
.hasNext();)
{
Entry element = (Entry) iter.next();
params.append(element.getKey().toString());
params.append("=");
params.append(URLEncoder.encode(element.getValue().toString(),
HttpRequestProxy.requestEncoding));
params.append("&");
}
if (params.length() > 0)
{
params = params.deleteCharAt(params.length() - 1);
}
URL url = new URL(reqUrl);
url_con = (HttpURLConnection) url.openConnection();
url_con.setRequestMethod("GET");
System.setProperty("sun.net.client.defaultConnectTimeout", String
.valueOf(HttpRequestProxy.connectTimeOut));// （單位：毫秒）jdk1.4換成這個(gè),連接超時(shí)
System.setProperty("sun.net.client.defaultReadTimeout", String
.valueOf(HttpRequestProxy.readTimeOut)); // （單位：毫秒）jdk1.4換成這個(gè),讀操作超時(shí)
// url_con.setConnectTimeout(5000);//（單位：毫秒）jdk
// 1.5換成這個(gè),連接超時(shí)
// url_con.setReadTimeout(5000);//（單位：毫秒）jdk 1.5換成這個(gè),讀操作超時(shí)
url_con.setDoOutput(true);
byte[] b = params.toString().getBytes();
url_con.getOutputStream().write(b, 0, b.length);
url_con.getOutputStream().flush();
url_con.getOutputStream().close();
InputStream in = url_con.getInputStream();
BufferedReader rd = new BufferedReader(new InputStreamReader(in,
recvEncoding));
String tempLine = rd.readLine();
StringBuffer temp = new StringBuffer();
String crlf=System.getProperty("line.separator");
while (tempLine != null)
{
temp.append(tempLine);
temp.append(crlf);
tempLine = rd.readLine();
}
responseContent = temp.toString();
rd.close();
in.close();
}
catch (IOException e)
{
logger.error("網(wǎng)絡(luò)故障", e);
}
finally
{
if (url_con != null)
{
url_con.disconnect();
}
}
return responseContent;
}
/**
* <pre>
* 發(fā)送不帶參數(shù)的GET的HTTP請求
* </pre>
*
* @param reqUrl HTTP請求URL
* @return HTTP響應(yīng)的字符串
*/
public static String doGet(String reqUrl, String recvEncoding)
{
HttpURLConnection url_con = null;
String responseContent = null;
try
{
StringBuffer params = new StringBuffer();
String queryUrl = reqUrl;
int paramIndex = reqUrl.indexOf("?");
if (paramIndex > 0)
{
queryUrl = reqUrl.substring(0, paramIndex);
String parameters = reqUrl.substring(paramIndex + 1, reqUrl
.length());
String[] paramArray = parameters.split("&");
for (int i = 0; i < paramArray.length; i++)
{
String string = paramArray[i];
int index = string.indexOf("=");
if (index > 0)
{
String parameter = string.substring(0, index);
String value = string.substring(index + 1, string
.length());
params.append(parameter);
params.append("=");
params.append(URLEncoder.encode(value,
HttpRequestProxy.requestEncoding));
params.append("&");
}
}
params = params.deleteCharAt(params.length() - 1);
}
URL url = new URL(queryUrl);
url_con = (HttpURLConnection) url.openConnection();
url_con.setRequestMethod("GET");
System.setProperty("sun.net.client.defaultConnectTimeout", String
.valueOf(HttpRequestProxy.connectTimeOut));// （單位：毫秒）jdk1.4換成這個(gè),連接超時(shí)
System.setProperty("sun.net.client.defaultReadTimeout", String
.valueOf(HttpRequestProxy.readTimeOut)); // （單位：毫秒）jdk1.4換成這個(gè),讀操作超時(shí)
// url_con.setConnectTimeout(5000);//（單位：毫秒）jdk
// 1.5換成這個(gè),連接超時(shí)
// url_con.setReadTimeout(5000);//（單位：毫秒）jdk 1.5換成這個(gè),讀操作超時(shí)
url_con.setDoOutput(true);
byte[] b = params.toString().getBytes();
url_con.getOutputStream().write(b, 0, b.length);
url_con.getOutputStream().flush();
url_con.getOutputStream().close();
InputStream in = url_con.getInputStream();
BufferedReader rd = new BufferedReader(new InputStreamReader(in,
recvEncoding));
String tempLine = rd.readLine();
StringBuffer temp = new StringBuffer();
String crlf=System.getProperty("line.separator");
while (tempLine != null)
{
temp.append(tempLine);
temp.append(crlf);
tempLine = rd.readLine();
}
responseContent = temp.toString();
rd.close();
in.close();
}
catch (IOException e)
{
logger.error("網(wǎng)絡(luò)故障", e);
}
finally
{
if (url_con != null)
{
url_con.disconnect();
}
}
return responseContent;
}
/**
* <pre>
* 發(fā)送帶參數(shù)的POST的HTTP請求
* </pre>
*
* @param reqUrl HTTP請求URL
* @param parameters 參數(shù)映射表
* @return HTTP響應(yīng)的字符串
*/
public static String doPost(String reqUrl, Map parameters,
String recvEncoding)
{
HttpURLConnection url_con = null;
String responseContent = null;
try
{
StringBuffer params = new StringBuffer();
for (Iterator iter = parameters.entrySet().iterator(); iter
.hasNext();)
{
Entry element = (Entry) iter.next();
params.append(element.getKey().toString());
params.append("=");
params.append(URLEncoder.encode(element.getValue().toString(),
HttpRequestProxy.requestEncoding));
params.append("&");
}
if (params.length() > 0)
{
params = params.deleteCharAt(params.length() - 1);
}
URL url = new URL(reqUrl);
url_con = (HttpURLConnection) url.openConnection();
url_con.setRequestMethod("POST");
System.setProperty("sun.net.client.defaultConnectTimeout", String
.valueOf(HttpRequestProxy.connectTimeOut));// （單位：毫秒）jdk1.4換成這個(gè),連接超時(shí)
System.setProperty("sun.net.client.defaultReadTimeout", String
.valueOf(HttpRequestProxy.readTimeOut)); // （單位：毫秒）jdk1.4換成這個(gè),讀操作超時(shí)
// url_con.setConnectTimeout(5000);//（單位：毫秒）jdk
// 1.5換成這個(gè),連接超時(shí)
// url_con.setReadTimeout(5000);//（單位：毫秒）jdk 1.5換成這個(gè),讀操作超時(shí)
url_con.setDoOutput(true);
byte[] b = params.toString().getBytes();
url_con.getOutputStream().write(b, 0, b.length);
url_con.getOutputStream().flush();
url_con.getOutputStream().close();
InputStream in = url_con.getInputStream();
BufferedReader rd = new BufferedReader(new InputStreamReader(in,
recvEncoding));
String tempLine = rd.readLine();
StringBuffer tempStr = new StringBuffer();
String crlf=System.getProperty("line.separator");
while (tempLine != null)
{
tempStr.append(tempLine);
tempStr.append(crlf);
tempLine = rd.readLine();
}
responseContent = tempStr.toString();
rd.close();
in.close();
}
catch (IOException e)
{
logger.error("網(wǎng)絡(luò)故障", e);
}
finally
{
if (url_con != null)
{
url_con.disconnect();
}
}
return responseContent;
}
/**
* @return 連接超時(shí)(毫秒)
* @see com.hengpeng.common.web.HttpRequestProxy#connectTimeOut
*/
public static int getConnectTimeOut()
{
return HttpRequestProxy.connectTimeOut;
}
/**
* @return 讀取數(shù)據(jù)超時(shí)(毫秒)
* @see com.hengpeng.common.web.HttpRequestProxy#readTimeOut
*/
public static int getReadTimeOut()
{
return HttpRequestProxy.readTimeOut;
}
/**
* @return 請求編碼
* @see com.hengpeng.common.web.HttpRequestProxy#requestEncoding
*/
public static String getRequestEncoding()
{
return requestEncoding;
}
/**
* @param connectTimeOut 連接超時(shí)(毫秒)
* @see com.hengpeng.common.web.HttpRequestProxy#connectTimeOut
*/
public static void setConnectTimeOut(int connectTimeOut)
{
HttpRequestProxy.connectTimeOut = connectTimeOut;
}
/**
* @param readTimeOut 讀取數(shù)據(jù)超時(shí)(毫秒)
* @see com.hengpeng.common.web.HttpRequestProxy#readTimeOut
*/
public static void setReadTimeOut(int readTimeOut)
{
HttpRequestProxy.readTimeOut = readTimeOut;
}
/**
* @param requestEncoding 請求編碼
* @see com.hengpeng.common.web.HttpRequestProxy#requestEncoding
*/
public static void setRequestEncoding(String requestEncoding)
{
HttpRequestProxy.requestEncoding = requestEncoding;
}
public static void main(String[] args)
{
Map map = new HashMap();
map.put("actionType", "1");
// map.put("issueId", "33");
String temp = HttpRequestProxy.doPost("http://192.168.0.99/AgentPortal/autoHandler", map, "GBK");
System.out.println("返回的消息是:"+temp);
}
}