java类模拟客户端调用servlet (httpClient)

import org.apache.commons.httpclient.DefaultHttpMethodRetryHandler;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpException;
import org.apache.commons.httpclient.HttpStatus;
import org.apache.commons.httpclient.methods.PostMethod;
import org.apache.commons.httpclient.params.HttpMethodParams;

......

// 构造HttpClient的实例
  HttpClient httpClient = new HttpClient();
  // 创建GET方法的实例
  PostMethod postMethod = new PostMethod(url + "servlet/getUrlAddress?");
  // 使用系统提供的默认的恢复策略
  postMethod.getParams().setParameter(HttpMethodParams.RETRY_HANDLER,
    new DefaultHttpMethodRetryHandler());
  
  postMethod.addParameter("username",URLEncoder.encode(username));
  postMethod.addParameter("password",URLEncoder.encode(password));
  try {
   // 执行postMethod
   int statusCode = httpClient.executeMethod(postMethod);
   if (statusCode != HttpStatus.SC_OK) {
    System.err.println("Method failed: " + postMethod.getStatusLine());
   }
   // 读取内容
   String responseBody = new String(postMethod.getResponseBody());
   // 处理内容
   //System.out.println("servlet返回的内容 ： " + responseBody);
  } 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 {
   // 释放连接
   postMethod.releaseConnection();
  }

java类模拟客户端调用servlet (httpClient)

原文：https://www.cnblogs.com/FHJKIUYTR2343455/p/13392455.html