httpClient怎么取得编码的问题

fuyou001 2009-09-19 11:17:16

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package org.apache.http.examples.client;



import org.apache.http.HttpEntity;

import org.apache.http.HttpResponse;

import org.apache.http.client.HttpClient;

import org.apache.http.client.methods.HttpGet;

import org.apache.http.impl.client.DefaultHttpClient;



/**

 * This example demonstrates how to abort an HTTP method before its normal completion.

 */

public class ClientAbortMethod {



    public final static void main(String[] args) throws Exception {

        HttpClient httpclient = new DefaultHttpClient();



        HttpGet httpget = new HttpGet("http://www.baidu.com"); 



        System.out.println("executing request " + httpget.getURI());

        HttpResponse response = httpclient.execute(httpget);

        HttpEntity entity = response.getEntity();



        System.out.println("----------------------------------------");

        System.out.println(response.getStatusLine().getStatusCode());

        

        if (entity != null) {

            System.out.println("Response content length: " + entity.getContentLength());

            System.out.println("content-type:" +entity.getContentType().getValue());

           

        }

        System.out.println("----------------------------------------");



        // Do not feel like reading the response body

        // Call abort on the request object

        httpget.abort();

        

        // When HttpClient instance is no longer needed, 

        // shut down the connection manager to ensure

        // immediate deallocation of all system resources

        httpclient.getConnectionManager().shutdown();        

    }



}

结果：

executing request http://www.baidu.com
----------------------------------------
200
Response content length: 3509
content-type:text/html
----------------------------------------
用网面打开www.baidu.com 编码会自动设置成GB312
为什么httpClient里没取得编码

看下了其源代码头 ,httpClient 没用java 里URLconnection 去实现，而是用最底层的socket 去实现的

要怎么要才取得content-type里的charset ???

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GK20182 2010-10-23

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如果content-type中没有设置编码的话，entity.getContentType()中是获取不了编码的值。

浏览器是先从content-type的charset（响应头信息）中获取编码，如果获取不了，则会从meta（HTML里的代码）中获取charset的编码值，如7楼所示。

qingkangxu 2009-09-21

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httpget.getRequestHeader("Content-Type");
然后自己找
“charset=”后面的字符串就是编码/

amdgaming 2009-09-20

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帮顶。

fuyou001 2009-09-20

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没人遇到过吗

fuyou001 2009-09-20

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[Quote=引用 6 楼 java_lover_coming 的回复:]
你是不是想取得服务器返回头信息呀
我也在这个方面碰到问题，不过是编码问题，服务器返回的是乱码（除头信息以外）
帮顶一下
[/Quote]

就是啊，它没有取得编码的方法，我又看了源代码，也没看到

期待解决方法。。。

yztommyhc 2009-09-20

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http://blog.csdn.net/yztommyhc/archive/2009/01/13/3765193.aspx

这个我以前写的博客，希望对解决这个问题有帮助。。。

yztommyhc 2009-09-20

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content-type里的charset应该是在java-URLconnection取得的源文件吧。

浏览器选择用何种编码打开网页时根据源文件中的charset的，这个你用URLconnection取得的源文件是有的啊。就像你用浏览器，点“查看”--》“源文件”，看到文件上方
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>httpClient怎么取得编码的问题</title>
<link href="http://c.csdn.net/bbs/t/5/t5.css" rel="stylesheet" type="text/css" />
<link href="http://www.csdn.net/images/favicon.ico" rel="SHORTCUT ICON" />
这个就是本网页的头文件，你代码解析其中的红色部分不就行了么。