java模拟post请求,

最新推荐文章于 2022-03-21 09:50:06 发布

转载最新推荐文章于 2022-03-21 09:50:06 发布 · 113 阅读

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原文链接：https://my.oschina.net/thomas2/blog/1596827

文章标签：

#java #python

本文提供了一个使用Apache HttpClient库发送POST请求到指定URL并处理响应的Java代码示例。示例展示了如何设置请求参数，并检查HTTP状态码及重定向。

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package com.atguigu.fileupload.app.utils;
import org.apache.commons.httpclient.Header;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpException;
import org.apache.commons.httpclient.HttpStatus;
import org.apache.commons.httpclient.NameValuePair;
import org.apache.commons.httpclient.methods.PostMethod;
public class PostHttp {
 /**
  * @param args
  */
 public static void main(String[] args) {
  // TODO Auto-generated method stub
  HttpClient httpClient = new HttpClient();
  String url = "http://localhost:8080/user/detail";
  PostMethod postMethod = new PostMethod(url);
//   填入各个表单域的值
  NameValuePair[] data = {
    new NameValuePair("id", "3")
  };
//   将表单的值放入postMethod中
  postMethod.setRequestBody(data);
//   执行postMethod
  int statusCode = 0;
  try {
   statusCode = httpClient.executeMethod(postMethod);
  } catch (HttpException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (Exception e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
//   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
//   301或者302
  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.");
   }
   return;
  }
  else
  {
         System.out.println(postMethod.getStatusLine());
         String str = "";
         try {
               str = postMethod.getResponseBodyAsString();
         } catch (Exception e) {
               // TODO Auto-generated catch block
               e.printStackTrace();
         }        
         System.out.println(str);
  }
  postMethod.releaseConnection();
        return ;
 }
}

转载于:https://my.oschina.net/thomas2/blog/1596827