HTTP请求代理类,后台post提交数据
星期四, 2008-09-25 | Author: liyz | JAVA-and-J2EE | 11,942 views
经测试,可以完成正常读取和提交,要想读取并解析其中内容还要借助html解析了,感觉像是做内容采集了,代码如下,仅是个代理类
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 | /** * Title: HttpRequestProxy.java * Type: com.liyz.http.HttpRequestProxy * Company: */ package com.liyz.http; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.io.UnsupportedEncodingException; import java.net.HttpURLConnection; import java.net.URL; import java.net.URLEncoder; import java.util.HashMap; import java.util.Iterator; import java.util.Map; import java.util.Map.Entry; import org.apache.log4j.Logger; /** * HTTP请求代理类 */ public class HttpRequestProxy { /** * 连接超时 */ private static int connectTimeOut = 5000; /** * 读取数据超时 */ private static int readTimeOut = 10000; /** * 请求编码 */ private static String requestEncoding = "utf-8"; private static Logger logger = Logger.getLogger(HttpRequestProxy.class); /** * 发送带参数的GET的HTTP请求 * * @param reqUrl HTTP请求URL * @param parameters 参数映射表 * @return HTTP响应的字符串 */ @SuppressWarnings("unchecked") public static String doGet(String reqUrl, Map parameters, String recvEncoding) { HttpURLConnection url_con = null; String responseContent = null; try { StringBuffer params = new StringBuffer(); for (Iterator iter = parameters.entrySet().iterator(); iter .hasNext();) { Entry element = (Entry) iter.next(); params.append(element.getKey().toString()); params.append("="); params.append(URLEncoder.encode(element.getValue().toString(), HttpRequestProxy.requestEncoding)); params.append("&"); } if (params.length() > 0) { params = params.deleteCharAt(params.length() - 1); } URL url = new URL(reqUrl); url_con = (HttpURLConnection) url.openConnection(); url_con.setRequestMethod("GET"); System.setProperty("sun.net.client.defaultConnectTimeout", String .valueOf(HttpRequestProxy.connectTimeOut));// (单位:毫秒)jdk1.4换成这个,连接超时 System.setProperty("sun.net.client.defaultReadTimeout", String .valueOf(HttpRequestProxy.readTimeOut)); // (单位:毫秒)jdk1.4换成这个,读操作超时 // url_con.setConnectTimeout(5000);//(单位:毫秒)jdk // 1.5换成这个,连接超时 // url_con.setReadTimeout(5000);//(单位:毫秒)jdk 1.5换成这个,读操作超时 url_con.setDoOutput(true); byte[] b = params.toString().getBytes(); url_con.getOutputStream().write(b, 0, b.length); url_con.getOutputStream().flush(); url_con.getOutputStream().close(); InputStream in = url_con.getInputStream(); BufferedReader rd = new BufferedReader(new InputStreamReader(in, recvEncoding)); String tempLine = rd.readLine(); StringBuffer temp = new StringBuffer(); String crlf=System.getProperty("line.separator"); while (tempLine != null) { temp.append(tempLine); temp.append(crlf); tempLine = rd.readLine(); } responseContent = temp.toString(); rd.close(); in.close(); } catch (IOException e) { logger.error("网络故障", e); } finally { if (url_con != null) { url_con.disconnect(); } } return responseContent; } /** * 发送不带参数的GET的HTTP请求 * * @param reqUrl HTTP请求URL * @return HTTP响应的字符串 */ public static String doGet(String reqUrl, String recvEncoding) { HttpURLConnection url_con = null; String responseContent = null; try { StringBuffer params = new StringBuffer(); String queryUrl = reqUrl; int paramIndex = reqUrl.indexOf("?"); if (paramIndex > 0) { queryUrl = reqUrl.substring(0, paramIndex); String parameters = reqUrl.substring(paramIndex + 1, reqUrl .length()); String[] paramArray = parameters.split("&"); for (int i = 0; i < paramArray.length; i++) { String string = paramArray[i]; int index = string.indexOf("="); if (index > 0) { String parameter = string.substring(0, index); String value = string.substring(index + 1, string .length()); params.append(parameter); params.append("="); params.append(URLEncoder.encode(value, HttpRequestProxy.requestEncoding)); params.append("&"); } } params = params.deleteCharAt(params.length() - 1); } URL url = new URL(queryUrl); url_con = (HttpURLConnection) url.openConnection(); url_con.setRequestMethod("GET"); System.setProperty("sun.net.client.defaultConnectTimeout", String .valueOf(HttpRequestProxy.connectTimeOut));// (单位:毫秒)jdk1.4换成这个,连接超时 System.setProperty("sun.net.client.defaultReadTimeout", String .valueOf(HttpRequestProxy.readTimeOut)); // (单位:毫秒)jdk1.4换成这个,读操作超时 // url_con.setConnectTimeout(5000);//(单位:毫秒)jdk // 1.5换成这个,连接超时 // url_con.setReadTimeout(5000);//(单位:毫秒)jdk 1.5换成这个,读操作超时 url_con.setDoOutput(true); byte[] b = params.toString().getBytes(); url_con.getOutputStream().write(b, 0, b.length); url_con.getOutputStream().flush(); url_con.getOutputStream().close(); InputStream in = url_con.getInputStream(); BufferedReader rd = new BufferedReader(new InputStreamReader(in, recvEncoding)); String tempLine = rd.readLine(); StringBuffer temp = new StringBuffer(); String crlf=System.getProperty("line.separator"); while (tempLine != null) { temp.append(tempLine); temp.append(crlf); tempLine = rd.readLine(); } responseContent = temp.toString(); rd.close(); in.close(); } catch (IOException e) { logger.error("网络故障", e); } finally { if (url_con != null) { url_con.disconnect(); } } return responseContent; } /** * 发送带参数的POST的HTTP请求 * * @param reqUrl HTTP请求URL * @param parameters 参数映射表 * @return HTTP响应的字符串 */ @SuppressWarnings("unchecked") public static String doPost(String reqUrl, Map parameters, String recvEncoding) { HttpURLConnection url_con = null; String responseContent = null; try { StringBuffer params = new StringBuffer(); for (Iterator iter = parameters.entrySet().iterator(); iter .hasNext();) { Entry element = (Entry) iter.next(); params.append(element.getKey().toString()); params.append("="); params.append(URLEncoder.encode(element.getValue().toString(), HttpRequestProxy.requestEncoding)); params.append("&"); } if (params.length() > 0) { params = params.deleteCharAt(params.length() - 1); } URL url = new URL(reqUrl); url_con = (HttpURLConnection) url.openConnection(); url_con.setRequestMethod("POST"); System.setProperty("sun.net.client.defaultConnectTimeout", String .valueOf(HttpRequestProxy.connectTimeOut));// (单位:毫秒)jdk1.4换成这个,连接超时 System.setProperty("sun.net.client.defaultReadTimeout", String .valueOf(HttpRequestProxy.readTimeOut)); // (单位:毫秒)jdk1.4换成这个,读操作超时 // url_con.setConnectTimeout(5000);//(单位:毫秒)jdk // 1.5换成这个,连接超时 // url_con.setReadTimeout(5000);//(单位:毫秒)jdk 1.5换成这个,读操作超时 url_con.setDoOutput(true); byte[] b = params.toString().getBytes(); url_con.getOutputStream().write(b, 0, b.length); url_con.getOutputStream().flush(); url_con.getOutputStream().close(); InputStream in = url_con.getInputStream(); BufferedReader rd = new BufferedReader(new InputStreamReader(in, recvEncoding)); String tempLine = rd.readLine(); StringBuffer tempStr = new StringBuffer(); String crlf=System.getProperty("line.separator"); while (tempLine != null) { tempStr.append(tempLine); tempStr.append(crlf); tempLine = rd.readLine(); } responseContent = tempStr.toString(); rd.close(); in.close(); } catch (IOException e) { logger.error("网络故障", e); } finally { if (url_con != null) { url_con.disconnect(); } } return responseContent; } /** * @return 连接超时(毫秒) * @see com.liyz.http.HttpRequestProxy#connectTimeOut */ public static int getConnectTimeOut() { return HttpRequestProxy.connectTimeOut; } /** * @return 读取数据超时(毫秒) * @see com.liyz.http.HttpRequestProxy#readTimeOut */ public static int getReadTimeOut() { return HttpRequestProxy.readTimeOut; } /** * @return 请求编码 * @see com.liyz.http.HttpRequestProxy#requestEncoding */ public static String getRequestEncoding() { return requestEncoding; } /** * @param connectTimeOut 连接超时(毫秒) * @see com.liyz.http.HttpRequestProxy#connectTimeOut */ public static void setConnectTimeOut(int connectTimeOut) { HttpRequestProxy.connectTimeOut = connectTimeOut; } /** * @param readTimeOut 读取数据超时(毫秒) * @see com.liyz.http.HttpRequestProxy#readTimeOut */ public static void setReadTimeOut(int readTimeOut) { HttpRequestProxy.readTimeOut = readTimeOut; } /** * @param requestEncoding 请求编码 * @see com.liyz.http.HttpRequestProxy#requestEncoding */ public static void setRequestEncoding(String requestEncoding) { HttpRequestProxy.requestEncoding = requestEncoding; } /** * @param args * http://localhost/bbs/register2.php?username=test002&password=123456 * &[email protected]&locationnew=香港 * @throws UnsupportedEncodingException * @throws IOException */ public static void main(String[] args) { Map<String, String> map = new HashMap<String, String>(); map.put("username", "testing008"); map.put("password", "123456"); map.put("email", "[email protected]"); map.put("locationnew", "香港"); String temp = HttpRequestProxy.doPost("http://192.168.101.118/bbs/register2.php", map, "utf-8"); System.out.println("返回的消息是:"+temp); } } |
文章作者: liyz
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