Android:解决client从server上获取数据乱码的方法

向server发送HTTP请求。接收到的JSON包为response，用String content = EntityUtils.toString(response.getEntity(),"utf-8");解码还是出现了中文乱码，在后面加了

        String name = new String(response.getBytes("iso-8859-1"), "UTF-8");  

也无济于事。

想到server好像是用URLENCODER编了码的。怀着试一试的态度在return后面加了条URLDecoder.decode(content,"utf-8");果然有效！

只是还是不太明确URLDecoder.decode(content,"utf-8")和EntityUtils.toString(response.getEntity(),"utf-8")在解码的时候有什么差别。以下是网络端的代码：

package com.trilink.ibeaconlocationdisplay.utils;

import java.io.UnsupportedEncodingException;
import java.util.List;

import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.params.BasicHttpParams;
import org.apache.http.params.HttpConnectionParams;
import org.apache.http.util.EntityUtils;

import android.util.Log;


public class NetworkService {

	private static String TAG = "NetworkService";
	
	//private static String url_ip = ServerUrl.SERVER_ADRESS+"UserInfoServlet?";
	//private static String url_ip = "http://192.168.1.231:8080/indoor/";
	
	/**
	 * 释放资源
	 */
	public static void cancel() {
		Log.i(TAG, "cancel!");
		// if(conn != null) {
		// conn.cancel();
		// }
	}
	//无參数传递的
		public static String getPostResult(String url){			
			//创建http请求对象
			HttpPost post = new HttpPost(url);			
			//创建HttpParams以用来设置HTTP參数
	        BasicHttpParams httpParams = new BasicHttpParams();
			HttpConnectionParams.setConnectionTimeout(httpParams,10 * 1000);
			HttpConnectionParams.setSoTimeout(httpParams, 10 * 1000);
			//创建网络訪问处理对象
			HttpClient httpClient = new DefaultHttpClient(httpParams);
			try{
				//运行请求參数
				HttpResponse response = httpClient.execute(post);
				//推断是否请求成功
				if(response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
					//获得响应信息
					String content = EntityUtils.toString(response.getEntity());
					return URLDecoder.decode(content,"utf-8");
				}
			}catch(Exception e) {
				e.printStackTrace();
				return "{"status":405,"resultMsg":"网络超时！"}";
			} finally {
				//释放网络连接资源
				httpClient.getConnectionManager().shutdown();
			}
			return "{"status":405,"resultMsg":"网络超时！"}";			
		}
	   //有參数传递的
		public static String getPostResult(String url, List<NameValuePair> paramList){
			UrlEncodedFormEntity entity = null;
			try {
				entity = new UrlEncodedFormEntity(paramList,"utf-8");
			} catch (UnsupportedEncodingException e1) {
				// TODO Auto-generated catch block
				e1.printStackTrace();
			}			
			//创建http请求对象
			HttpPost post = new HttpPost(url);
			BasicHttpParams httpParams = new BasicHttpParams();			
			HttpConnectionParams.setConnectionTimeout(httpParams, 10 * 1000);
			HttpConnectionParams.setSoTimeout(httpParams, 10 * 1000);
			post.setEntity(entity);
			//创建网络訪问处理对象
			HttpClient httpClient = new DefaultHttpClient(httpParams);
			try{
				//运行请求參数
				HttpResponse response = httpClient.execute(post);
				//推断是否请求成功
				if(response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
					//获得响应信息
					String content = EntityUtils.toString(response.getEntity(),"UTF-8");
                                        return URLDecoder.decode(content,"utf-8");                  
                      				}				
			}catch(Exception e) {
				e.printStackTrace();
				return "{"status":405,"resultMsg":"网络超时！"}";
			} finally {
				//释放网络连接资源
				httpClient.getConnectionManager().shutdown();
			}
			return "{"status":405,"resultMsg":"网络超时！
"}";			
		}
}