httpclient get和post，中文乱码已解决

来源：互联网发布：appstore付费软件编辑：程序博客网时间：2024/04/30 08:58

使用httpclient方法

get:

使用get请求，获取url传过来的数据

 // 打印响应内容 ，转换为utf-8格式，避免所传内容包含汉字乱码   
  context = EntityUtils.toString(entity, "UTF-8");

得到的entity，一定要限定编码

实例：

 /** 
     * 发送 get请求 
     */  
    public String get(String url1) {  
        CloseableHttpClient httpclient = HttpClients.createDefault();
        String context="";
        try {  
            URL url = new URL(url1);
    URI uri = new URI(url.getProtocol(), url.getHost() + ":" + url.getPort(),url.getPath(), url.getQuery(), null);
    // 创建httpget.      
            HttpGet httpget = new HttpGet(uri);  
            System.out.println("executing request " + httpget.getURI());  
            // 执行get请求.    
            CloseableHttpResponse response = httpclient.execute(httpget);  
            // 获取响应实体   
            HttpEntity entity = response.getEntity();  
            System.out.println("--------------------------------------");  
            // 打印响应状态    
            System.out.println(response.getStatusLine());  
            if (entity != null) {  
                // 打印响应内容 ，转换为utf-8格式，避免所传内容包含汉字乱码   
            context = EntityUtils.toString(entity, "UTF-8");
            System.out.println(context);               
            }  
           response.close();   
           return context;            
        } catch (Exception e) {  
            e.printStackTrace(); 
            return "Exception";
        } 
        finally {  
           //          关闭连接,释放资源    
            try {  
                httpclient.close();  
            } catch (IOException e) {  
                e.printStackTrace();  
            }  
        }
    }

post:

post数据给URL，并获得其返回数据

除了接收到的数据要注意编码之外，post给URL的数据也要注意编码问题

tringEntityse=newStringEntity(param.toString(),"UTF-8");//解决传送的Json中文乱码

实例：

  /** 
     * 发送 post请求访问本地应用并根据传递参数不同返回不同结果 
     */  
    public String post(String url,JSONObject param) {
     String context="";
         // 创建默认的httpClient实例.    
        CloseableHttpClient httpclient = HttpClients.createDefault();  
        try {
            URL url1 = new URL(url);   
            URI uri = new URI(url1.getProtocol(), url1.getHost(), url1.getPath(), url1.getQuery(), null); 
            // 创建httppost  
            HttpPost httppost = new HttpPost(uri);  
            // 绑定到请求 Entry
            StringEntity se = new StringEntity(param.toString() ,"UTF-8");//解决传送的Json中文乱码
    httppost.setEntity(se);
    // 发送请求 
            CloseableHttpResponse response = httpclient.execute(httppost); 
            // 得到应答的字符串，这也是一个 JSON 格式保存的数据
            HttpEntity entity = response.getEntity();  
            if (entity != null) {           
               context = EntityUtils.toString(entity, "UTF-8");
            }   
           response.close(); 
           return context;
        } catch (Exception e) {  
            e.printStackTrace(); 
            return "Exception";
        } finally {  
            // 关闭连接,释放资源    
            try {  
                httpclient.close();  
            } catch (IOException e) {  
                e.printStackTrace();  
            }  
        }  
    }  
}

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