import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.Date;
import java.util.HashMap;
import java.util.List;

import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpStatus;
import org.apache.commons.httpclient.methods.PostMethod;
import org.apache.commons.httpclient.methods.RequestEntity;
import org.apache.commons.httpclient.methods.StringRequestEntity;

  


public class Test {

 /**
  * @param args
  */
 public static void main(String[] args) throws Exception{

 

//直接字符串拼接
  StringBuffer sb = new StringBuffer();
  sb.append("<app_ei_sync_req><enabler_id>pengxwtest</enabler_id><dev_id>pengxwtest</dev_id>" +
    "<app_id>pengxwtest</app_id><app_secret>pengxwtest</app_secret>" +
    "<app_status>2</app_status><app_level>0</app_level><app_ei><ei_id>1</ei_id>" +
    "<ei_id>2</ei_id><ei_id>3</ei_id></app_ei></app_ei_sync_req>");//xml数据存储
  String data = sb.toString();
  String url = "接口地址";
  HttpClient httpclient = new HttpClient();
        PostMethod post  = new PostMethod(url); 
        String info = null;
        try {  
            RequestEntity entity = new StringRequestEntity(data, "text/xml",  
            "iso-8859-1");  
            post.setRequestEntity(entity);  
            httpclient.executeMethod(post);
            int code = post.getStatusCode();  
            if (code == HttpStatus.SC_OK)  
                info = new String(post.getResponseBodyAsString());  //接口返回的信息
        } catch (Exception ex) {  
            ex.printStackTrace();  
        } finally {  
            post.releaseConnection();  
        }  
  System.out.println(info);
  
 }
 

//读取xml文件

public class xmlTool(){

InputStreamReader read = new InputStreamReader (new FileInputStream("f://aa.xml"),"UTF-8");

  StringBuffer sb = new StringBuffer();
 
     BufferedReader br = new BufferedReader(read);
     String row;
     while((row = br.readLine())!=null){
      sb.append(row.trim());

     }
     String data = sb.toString();
     String url = "http://localhost:9099/vtoss/cloudapi/rp_video_transcode_batch.do";
   HttpClient httpclient = new HttpClient();
         PostMethod post  = new PostMethod(url); 
         String info = null;
         try {  
             RequestEntity entity = new StringRequestEntity(data, "text/xml",  
             "UTF-8");  
             post.setRequestEntity(entity);  
             httpclient.executeMethod(post);
             int code = post.getStatusCode();  
             if (code == HttpStatus.SC_OK)  
                 info = new String(post.getResponseBodyAsString());  
         } catch (Exception ex) {  
             ex.printStackTrace();  
         } finally {  
             post.releaseConnection();  
         }  
         System.out.println(info);

 

}
}

 转向的处理

private void postMethod(String url) throws IOException
 {     
  url = "http://www.newsmth.net/bbslogin2.php";
  PostMethod postMethod = new PostMethod(url);
  // 填入各个表单域的值
  NameValuePair[] data = { new NameValuePair("id", "herrapfel"),new NameValuePair("passwd", "") };
  // 将表单的值放入postMethod中
  postMethod.setRequestBody(data);
  // 执行postMethod
  int statusCode = httpClient.executeMethod(postMethod);
  System.out.println(" status code:" + statusCode);
  // HttpClient对于要求接受后继服务的请求，象POST和PUT等不能自动处理转发
 

 

if(statusCode == HttpStatus.SC_OK)
  {
   StringBuffer contentBuffer = new StringBuffer();
   InputStream in = postMethod.getResponseBodyAsStream();
            BufferedReader reader = new BufferedReader(new InputStreamReader(in,postMethod.getResponseCharSet()));
            String inputLine = null;
            while((inputLine = reader.readLine()) != null)
            {
             contentBuffer.append(inputLine);
             System.out.println("input line:"+ inputLine);
             contentBuffer.append("/n");
            }
            in.close();

  }
  else if (statusCode == HttpStatus.SC_MOVED_PERMANENTLY || statusCode == HttpStatus.SC_MOVED_TEMPORARILY) 
  {
      // 从头中取出转向的地址
      Header locationHeader = postMethod.getResponseHeader("location");
      String location = null;
      if (locationHeader != null) 
      {
       location = locationHeader.getValue();
       System.out.println("The page was redirected to:" + location);
      } 
      else 
      {
       System.err.println("Location field value is null.");
      }
  }

 }

从文件读取 

import java.io.File;
import java.io.FileInputStream;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.methods.EntityEnclosingMethod;
import org.apache.commons.httpclient.methods.PostMethod;
/**
 * 用来演示提交XML格式数据的例子
 */
public class PostXMLClient {
    public static void main(String[] args) throws Exception {
        File input = new File(“test.xml”);
        PostMethod post = new PostMethod(“http://localhost:8080/httpclient/xml.jsp”);
        // 设置请求的内容直接从文件中读取
     post.setRequestBody(new FileInputStream(input));
        if (input.length() < Integer.MAX_VALUE) 
           post.setRequestContentLength(input.length());
        else           
           post.setRequestContentLength(EntityEnclosingMethod.CONTENT_LENGTH_CHUNKED);
        // 指定请求内容的类型
     post.setRequestHeader("Content-type", "text/xml; charset=GBK");
        HttpClient httpclient = new HttpClient(); 
        int result = httpclient.executeMethod(post); 
        System.out.println("Response status code: " + result);
        System.out.println("Response body: ");
        System.out.println(post.getResponseBodyAsString());
        post.releaseConnection();
    }
}