如何用java模拟ajax数据发送请求

12/12/2015来源:Java教程人气:6155

案例1:

import org.apache.commons.httpclient.*;  
import org.apache.commons.httpclient.methods.*;  
import org.apache.commons.httpclient.params.HttpMethodParams;  
  
import java.io.*;  
  
public class HttpClientTutorial {  
    
  PRivate static String url = "http://10.129.39.149:8090/Ajax/loginMgt/login.action";  
  
  public static void method(HttpClient client,String url,String body){  
      PostMethod  method = new PostMethod(url);  
        //"count":10,"ignoreCase":"false","paras":["a%"],"queryId":"getMenu"  
        NameValuePair[] postData = new NameValuePair[]{};    
        //postData[0] = new NameValuePair("count", 10);   
        method.setRequestBody(body);//addParameters(postData);   
          
          
        // Provide custom retry handler is necessary  
        /*method.getParams().setParameter(HttpMethodParams.RETRY_HANDLER,  
                new DefaultHttpMethodRetryHandler(3, false));*/  
  
        try {  
          // Execute the method.  
          int statusCode = client.executeMethod(method);  
  
          if (statusCode != HttpStatus.SC_OK) {  
            System.err.println("Method failed: " + method.getStatusLine());  
          }  
  
          // Read the response body.  
          byte[] responseBody = method.getResponseBody();  
  
          // Deal with the response.  
          // Use caution: ensure correct character encoding and is not binary data  
          System.out.println(new String(responseBody,"utf-8"));  
        } catch (HttpException e) {  
            System.err.println("Fatal protocol violation: " + e.getMessage());  
            e.printStackTrace();  
          } catch (IOException e) {  
            System.err.println("Fatal transport error: " + e.getMessage());  
            e.printStackTrace();  
          } finally {  
            // Release the connection.  
            method.releaseConnection();  
          }    
  }  
    
  public static void main(String[] args) {  
    // Create an instance of HttpClient.  
    HttpClient client = new HttpClient();  
      
    String body ="[{\"userId\":1,\"passWord\":1}]";  
    // Create a method instance.  
    method(client,url,body);  
      
    url = "http://10.129.39.149:8090/ajax/getInitValueArr.action";  
      
    body = "[{\"count\":10,\"ignoreCase\":\"false\",\"paras\":[\"a%\"],\"queryId\":\"getMenu\"}]";  
    method(client,url,body);  
  }  
}

案例2:

   HttpClient c = new HttpClient();    
    HttpMethod m = new GetMethod(); 

String path =msnListPath+"?account="+userSimpleInfo.getMsnAccount()+"&type=msn&uid="+userSimpleInfo.getPassportId()+"&pwd="+userSimpleInfo.getMsnPassword();
    m.setPath(path); 
    String response="";	
    int status = 0; 
    try { 
    status  = c.executeMethod(m);	

if(status == HttpStatus.SC_OK) {	
byte[] rbytes = m.getResponseBody(); 
response = new String(rbytes,"UTF-8"); 
return  response;	
} 

} catch (HttpException e) { 
// TODO Auto-generated catch block 
e.printStackTrace(); 
} catch (IOException e) { 
// TODO Auto-generated catch block 
e.printStackTrace(); 
} 
return "error";