package com.grkj.modules.tree.web.excel; import java.io.IOException; 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; public class HttpClientTutorial { //登录URL private final static String URL1 = "xxx.com/username=xxx&password=xxx; //要访问数据 private final static String URL2 = "xxx.com/getjession"; public static void main(String args[]) { /* 创建HttpClient实例 */ HttpClient client = new HttpClient(); /* 创建一个post方法 */ PostMethod postMethod = new PostMethod(URL1); PostMethod postMethod2 = new PostMethod(URL2); /* 执行post方法 */ try { int statusCode = client.executeMethod(postMethod); int statusCode2 = client.executeMethod(postMethod2);//注意client 要和登录人client 就同一个,这是保持session的关键 if (statusCode2 != HttpStatus.SC_OK) { System.err.println("Method failed: " + postMethod2.getStatusLine()); } /* 获得返回的结果 */ byte[] responseBody = postMethod2.getResponseBody(); System.out.println(new String(responseBody)); } 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. */ postMethod.releaseConnection(); } } }
httpclient访问需要登录才能访问的数据
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转载自wuzijingaip.iteye.com/blog/2205599
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