我的HttpClients工具

  1 import java.io.IOException;
  2 
  3 import javax.ws.rs.core.MediaType;
  4 
  5 import org.apache.commons.httpclient.HttpClient;
  6 import org.apache.commons.httpclient.HttpException;
  7 import org.apache.commons.httpclient.HttpStatus;
  8 import org.apache.commons.httpclient.methods.GetMethod;
  9 import org.apache.commons.httpclient.methods.PostMethod;
 10 import org.apache.commons.httpclient.methods.PutMethod;
 11 import org.apache.commons.httpclient.methods.RequestEntity;
 12 import org.apache.commons.httpclient.methods.StringRequestEntity;
 13 
 14 /**
 15  * 
 16  * @author Administrator
 17  *
 18  */
 19 public class RestClientUtils {
 20 
 21     /**
 22      * 发送POST请求
 23      * @param url
 24      * @param object
 25      */
 26     public static String post(String uri, Object content) {
 27         
 28         String sendContent = content.toString();
 29         String result = null;
 30         PostMethod postMethod = null;
 31         HttpClient httpClient = null;
 32         try {
 33             postMethod = new PostMethod(uri);
 34             httpClient = new HttpClient();
 35             RequestEntity entity = new StringRequestEntity(sendContent,
 36                     MediaType.APPLICATION_JSON + ";charset=UTF-8", null);//解决中文乱码问题的方法
 37             postMethod.addRequestHeader("Accept", MediaType.APPLICATION_JSON
 38                     + ";charset=UTF-8");
 39             postMethod.setRequestEntity(entity);
 40             int statusCode = httpClient.executeMethod(postMethod);
 41             //如果相应成功
 42             if (statusCode != HttpStatus.SC_OK) {
 43                 System.err.println(" Method failed:  "
 44                         + postMethod.getStatusLine());
 45                 return "failed";
 46             }
 47             byte[] responseBody = postMethod.getResponseBody();
 48             result = new String(responseBody, "utf-8");
 49             System.err.println("===================发送POST格式数据请求==================");
 50             System.err.println("返回状态："+statusCode);
 51             System.err.println("返回结果:");
 52             System.err.println(result);
 53             System.err.println("==============================================");
 54         } catch (HttpException e) {
 55             e.printStackTrace();
 56         } catch (IOException e) {
 57             e.printStackTrace();
 58         } finally {
 59             // 释放连接
 60             if (postMethod != null) {
 61                 postMethod.releaseConnection();
 62             }
 63         }
 64         return result;
 65     
 66     }
 67     
 68     /**
 69      * 发送GET请求
 70      * @return
 71      */
 72     public static String get(String uri) {
 73         HttpClient httpclient = new HttpClient();
 74         GetMethod getMethod = new GetMethod(uri);
 75         String result = "";
 76         int statusCode = 0;
 77         try {
 78             statusCode = httpclient.executeMethod(getMethod);
 79             result = getMethod.getResponseBodyAsString();
 80             System.err.println("===================发送GET请求==================");
 81             System.err.println("返回状态："+statusCode);
 82             System.err.println("返回结果:");
 83             System.err.println(result);
 84             System.err.println("==============================================");
 85         } catch (IOException e) {
 86             // TODO Auto-generated catch block
 87             e.printStackTrace();
 88         } finally {
 89             // 释放连接
 90             if (getMethod != null) {
 91                 getMethod.releaseConnection();
 92             }
 93         }
 94         
 95         return result;
 96     }
 97     
 98     /**
 99      * 发送PUT请求
100      * @param uri
101      * @param content
102      * @return
103      */
104     public static String put(String uri, Object content) {
105         String sendContent = content.toString();
106         HttpClient httpclient = new HttpClient();
107         PutMethod putMethod = new PutMethod(uri);
108         String result = "";
109         try {
110             
111             RequestEntity entity = new StringRequestEntity(sendContent,
112                     MediaType.APPLICATION_JSON + ";charset=UTF-8", null);//解决中文乱码问题的方法
113             putMethod.addRequestHeader("Accept", MediaType.APPLICATION_JSON
114                     + ";charset=UTF-8");
115             putMethod.setRequestEntity(entity);
116             int statusCode = httpclient.executeMethod(putMethod);
117             byte[] responseBody = putMethod.getResponseBody();
118             result = new String(responseBody, "utf-8");
119             System.err.println("===================发送PUT请求==================");
120             System.err.println("返回状态："+statusCode);
121             System.err.println("返回结果:");
122             System.err.println(result);
123             System.err.println("==============================================");
124         } catch (Exception e) {
125             e.printStackTrace();
126         } finally {
127             // 释放连接
128             if (null != putMethod) {
129                 putMethod.releaseConnection();
130             }
131         }
132         return result;
133     }
134 }