在实际的开发中，经常会使用的使用

package com.csyor.test;

import java.io.ByteArrayOutputStream;

import java.io.IOException;

import java.io.InputStream;

import java.io.UnsupportedEncodingException;

import java.net.HttpURLConnection;

import java.net.URL;

/**

*

* java模拟表单提交请求远端URL

*

* @author Csyor

*

*/

public class HttpRequest {

private String requestURL = "url";// 请求的URL

private String param1 = "param1";// 参数1

private String param2 = "param2";// 参数2

private String param3 = "param3";// 参数3

// 更多参数...

public String request() throws UnsupportedEncodingException {

String result = null;// 返回结果

InputStream inStream = null;

ByteArrayOutputStream outStream = null;

byte[] data = null;

try {

URL url = new URL(requestURL);// 请求的URL

// 打开连接

HttpURLConnection conn = (HttpURLConnection) url.openConnection();

conn.setRequestMethod("POST");// 提交模式为post

conn.setDoOutput(true);// 是否输入参数

// 下面进行拼接参数

StringBuffer params = new StringBuffer();

// 表单参数与get形式一样

params.append("param1").append("=").append(param1.trim()).append("&").

append("param2").append("=").append(param2.trim()).append("&").

append("param3").append("=").append(param3.trim());

// 可以添加更的参数,每个参数之间使用“&”分开

byte[] bypes = params.toString().getBytes();// 把参数转换成二进制

conn.getOutputStream().write(bypes);// 输入参数

inStream = conn.getInputStream();

outStream = new ByteArrayOutputStream();

byte[] buffer = new byte[1024];

int len = 0;

while ((len = inStream.read(buffer)) != -1) {

outStream.write(buffer, 0, len);

}

data = outStream.toByteArray();// 网页的二进制数据

result = new String(data, "utf-8");

} catch (Exception e) {

e.printStackTrace();

} finally {

try {

outStream.close();

inStream.close();

} catch (IOException e) {

e.printStackTrace();

}

}

return result;

}

}