httpclient向服务器POST XML字符串

一、使用 HttpClient 需要如下做法



1、 创建 HttpClient 的实例

2、 创建POST连接方法的实例

3、 调用client的 execute 方法来执行第二步中创建好的 method 实例

4、 读 response

5、 释放连接。无论执行方法是否成功，都必须释放连接

6、 对得到后的内容进行处理



二、创建处理上传处理的类UploadManager.java
Java代码 收藏代码

import java.util.ArrayList;
import java.util.List;
import java.util.regex.Pattern;

import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.NameValuePair;
import org.apache.commons.httpclient.methods.PostMethod;

public class UploadManager {
HttpClient client = new HttpClient();
PostMethod method = new PostMethod(){
public String getRequestCharSet() {
return "GBK";
}};

List<NameValuePair> params = new ArrayList<NameValuePair>();
String host;
String path;
int port;

public UploadManager setURL(String host, String path, int port) {
this.host = host;
this.path = path;
this.port = port;
client.getHostConfiguration().setHost(host, port, "http");
method.setPath(path);
return this;
}

public UploadManager addParam(String key, String value) {
params.add(new NameValuePair(key, value));
return this;
}

public boolean upload() {
try {
//将NameValuePair表单的值放入postMethod中
method.setRequestBody(params.toArray(new NameValuePair[params.size()]));
int statusCode = client.executeMethod(method);
String response = method.getResponseBodyAsString();
if(response.startsWith("SUCESS"))
return true;
}catch (HttpException e) {
//发生致命的异常，可能是协议不对或者返回的内容有问题
System.out.println("Please check your provided http address!");
e.printStackTrace();
}catch (IOException e) {
//发生网络异常
e.printStackTrace();
} finally {
params.clear();
method.releaseConnection();
}
return false;
}
}