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 }
