1 //http请求类
2 import java.io.BufferedReader;
3 import java.io.IOException;
4 import java.io.InputStream;
5 import java.io.InputStreamReader;
6 import java.net.HttpURLConnection;
7 import java.net.URL;
8 import java.nio.charset.Charset;
9 import java.util.Map;
10 import java.util.Vector;
11 /**
12 * HTTP请求
13 */
14 public class HttpRequester
15 {
16 /**
17 * 默认响应字符集
18 */
19 private String defaultContentEncoding;
20 public HttpRequester()
21 {
22 this.defaultContentEncoding = Charset.defaultCharset().name();
23 }
24 /**
25 * 发送GET请求
26 * @param urlString URL地址
27 * @return 响应对象
28 * @throws IOException
29 */
30 public HttpRespons sendGet(String urlString) throws IOException
31 {
32 return this.send(urlString, "GET", null, null);
33 }
34 /**
35 * 发送GET请求
36 * @param urlString URL地址
37 * @param params 参数集合
38 * @return 响应对象
39 * @throws IOException
40 */
41 public HttpRespons sendGet(String urlString, Map<String, String> params) throws IOException
42 {
43 return this.send(urlString, "GET", params, null);
44 }
45 /**
46 * 发送GET请求
47 * @param urlString URL地址
48 * @param params 参数集合
49 * @param propertys 请求属性
50 * @return 响应对象
51 * @throws IOException
52 */
53 public HttpRespons sendGet(String urlString, Map<String, String> params, Map<String, String> propertys) throws IOException
54 {
55 return this.send(urlString, "GET", params, propertys);
56 }
57 /**
58 * 发送POST请求
59 * @param urlString URL地址
60 * @return 响应对象
61 * @throws IOException
62 */
63 public HttpRespons sendPost(String urlString) throws IOException
64 {
65 return this.send(urlString, "POST", null, null);
66 }
67 /**
68 * 发送POST请求
69 * @param urlString URL地址
70 * @param params 参数集合
71 * @return 响应对象
72 * @throws IOException
73 */
74 public HttpRespons sendPost(String urlString, Map<String, String> params) throws IOException
75 {
76 return this.send(urlString, "POST", params, null);
77 }
78 /**
79 * 发送POST请求
80 * @param urlString URL地址
81 * @param params 参数集合
82 * @param propertys 请求属性
83 * @return 响应对象
84 * @throws IOException
85 */
86 public HttpRespons sendPost(String urlString, Map<String, String> params, Map<String, String> propertys) throws IOException
87 {
88 return this.send(urlString, "POST", params, propertys);
89 }
90 /**
91 * 发送HTTP请求
92 * @param urlString
93 * @return 响应对象
94 * @throws IOException
95 */
96 private HttpRespons send(String urlString, String method, Map<String, String> parameters, Map<String, String> propertys) throws IOException
97 {
98 HttpURLConnection urlConnection = null;
99 if (method.equalsIgnoreCase("GET") && parameters != null)
100 {
101 StringBuffer param = new StringBuffer();
102 int i = 0;
103 for (String key : parameters.keySet())
104 {
105 if (i == 0)
106 param.append("?");
107 else
108 param.append("&");
109 param.append(key).append("=").append(parameters.get(key));
110 // param.append(parameters.get(key));
111 i++;
112 }
113 urlString += param;
114 }
115 URL url = new URL(urlString);
116 urlConnection = (HttpURLConnection) url.openConnection();
117 urlConnection.setRequestMethod(method);
118 urlConnection.setDoOutput(true);
119 urlConnection.setDoInput(true);
120 urlConnection.setUseCaches(false);
121 if (propertys != null)
122 {
123 for (String key : propertys.keySet())
124 {
125 urlConnection.addRequestProperty(key, propertys.get(key));
126 }
127 }
128 if (method.equalsIgnoreCase("POST") && parameters != null)
129 {
130 StringBuffer param = new StringBuffer();
131 for (String key : parameters.keySet())
132 {
133 param.append("&");
134 param.append(key).append("=").append(parameters.get(key));
135 // param.append(parameters.get(key));
136 }
137 urlConnection.getOutputStream().write(param.toString().getBytes());
138 urlConnection.getOutputStream().flush();
139 urlConnection.getOutputStream().close();
140 }
141 return this.makeContent(urlString, urlConnection);
142 }
143 /**
144 * 得到响应对象
145 * @param urlConnection
146 * @return 响应对象
147 * @throws IOException
148 */
149 private HttpRespons makeContent(String urlString, HttpURLConnection urlConnection) throws IOException
150 {
151 HttpRespons httpResponser = new HttpRespons();
152 try
153 {
154 InputStream in = urlConnection.getInputStream();
155 BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(in));
156 httpResponser.contentCollection = new Vector<String>();
157 StringBuffer temp = new StringBuffer();
158 String line = bufferedReader.readLine();
159 while (line != null)
160 {
161 httpResponser.contentCollection.add(line);
162 temp.append(line).append("\r\n");
163 line = bufferedReader.readLine();
164 }
165 bufferedReader.close();
166 String ecod = urlConnection.getContentEncoding();
167 if (ecod == null)
168 ecod = this.defaultContentEncoding;
169 httpResponser.urlString = urlString;
170 httpResponser.defaultPort = urlConnection.getURL().getDefaultPort();
171 httpResponser.file = urlConnection.getURL().getFile();
172 httpResponser.host = urlConnection.getURL().getHost();
173 httpResponser.path = urlConnection.getURL().getPath();
174 httpResponser.port = urlConnection.getURL().getPort();
175 httpResponser.protocol = urlConnection.getURL().getProtocol();
176 httpResponser.query = urlConnection.getURL().getQuery();
177 httpResponser.ref = urlConnection.getURL().getRef();
178 httpResponser.userInfo = urlConnection.getURL().getUserInfo();
179 httpResponser.content = new String(temp.toString().getBytes(), ecod);
180 httpResponser.contentEncoding = ecod;
181 httpResponser.code = urlConnection.getResponseCode();
182 httpResponser.message = urlConnection.getResponseMessage();
183 httpResponser.contentType = urlConnection.getContentType();
184 httpResponser.method = urlConnection.getRequestMethod();
185 httpResponser.connectTimeout = urlConnection.getConnectTimeout();
186 httpResponser.readTimeout = urlConnection.getReadTimeout();
187 return httpResponser;
188 }
189 catch (IOException e)
190 {
191 throw e;
192 }
193 finally
194 {
195 if (urlConnection != null)
196 urlConnection.disconnect();
197 }
198 }
199 /**
200 * 默认的响应字符集
201 */
202 public String getDefaultContentEncoding()
203 {
204 return this.defaultContentEncoding;
205 }
206 /**
207 * 设置默认的响应字符集
208 */
209 public void setDefaultContentEncoding(String defaultContentEncoding)
210 {
211 this.defaultContentEncoding = defaultContentEncoding;
212 }
213 }
214
1 import java.util.Vector;
2 /**
3 * HTTP响应处理类
4 */
5 public class HttpRespons
6 {
7 String urlString;
8 int defaultPort;
9 String file;
10 String host;
11 String path;
12 int port;
13 String protocol;
14 String query;
15 String ref;
16 String userInfo;
17 String contentEncoding;
18 String content;
19 String contentType;
20 public int code;
21 String message;
22 String method;
23 int connectTimeout;
24 int readTimeout;
25 Vector<String> contentCollection;
26 public static final int CODE_OK = 200;
27 public String getContent()
28 {
29 return content;
30 }
31 public String getContentType()
32 {
33 return contentType;
34 }
35 public int getCode()
36 {
37 return code;
38 }
39 public String getMessage()
40 {
41 return message;
42 }
43 public Vector<String> getContentCollection()
44 {
45 return contentCollection;
46 }
47 public String getContentEncoding()
48 {
49 return contentEncoding;
50 }
51 public String getMethod()
52 {
53 return method;
54 }
55 public int getConnectTimeout()
56 {
57 return connectTimeout;
58 }
59 public int getReadTimeout()
60 {
61 return readTimeout;
62 }
63 public String getUrlString()
64 {
65 return urlString;
66 }
67 public int getDefaultPort()
68 {
69 return defaultPort;
70 }
71 public String getFile()
72 {
73 return file;
74 }
75 public String getHost()
76 {
77 return host;
78 }
79 public String getPath()
80 {
81 return path;
82 }
83 public int getPort()
84 {
85 return port;
86 }
87 public String getProtocol()
88 {
89 return protocol;
90 }
91 public String getQuery()
92 {
93 return query;
94 }
95 public String getRef()
96 {
97 return ref;
98 }
99 public String getUserInfo()
100 {
101 return userInfo;
102 }
103 }
104
1 //测试客户端
2 import java.io.IOException;
3 public class TestHttp
4 {
5 public static void main(String[] args) throws IOException
6 {
7 HttpRequester request = new HttpRequester();
8 HttpRespons hr = request.sendGet("http://www.12306.cn/mormhweb/");
9 String rsContent = hr.getContent();
10 System.out.println(rsContent);
11 }
12 }
