Android 查询工具源代码-IT计算机-毕业设计.zip

package com.shinylife.smalltools.helper; import java.io.IOException; import java.io.OutputStream; import java.io.UnsupportedEncodingException; import java.net.HttpURLConnection; import java.net.MalformedURLException; import java.net.URL; import java.net.URLEncoder; import java.util.HashMap; import java.util.List; import java.util.Map; public class HttpClientHelper { private static final long serialVersionUID = 808018030183407996L; private static final int OK = 200;// OK: Success! private static final int NOT_MODIFIED = 304; private static final int BAD_REQUEST = 400; private static final int NOT_AUTHORIZED = 401; private static final int FORBIDDEN = 403; private static final int NOT_FOUND = 404; private static final int NOT_ACCEPTABLE = 406; private static final int INTERNAL_SERVER_ERROR = 500; private static final int BAD_GATEWAY = 502; private static final int SERVICE_UNAVAILABLE = 503; private final static boolean DEBUG = Constants.DEBUG; private int retryCount = Constants.HTTP_REQUEST_RETRY_COUNT; private int retryIntervalMillis = Constants.HTTP_REQUEST_RETRY_INTERVAL_SECONDS * 1000; private int connectionTimeout = Constants.HTTP_REQUEST_CONNECTION_TIMEOUT * 1000; private int readTimeout = Constants.HTTP_REQUEST_READ_TIMEOUT * 1000; private String reqestCharset = "utf-8"; private String responseCharset = "utf-8"; private Map<String, String> requestHeaders = new HashMap<String, String>(); public void setRequestCharset(String charset) { reqestCharset = charset; } public String getRequestCharset() { return reqestCharset == null ? "ISO-8859-1" : reqestCharset; } public void setResponseCharset(String charset) { responseCharset = charset; } public String getResponseCharset() { return responseCharset == null ? "ISO-8859-1" : responseCharset; } public HttpResponse delete(String url) throws HttpException { return delete(url, true); } public HttpResponse delete(String url, boolean isEncodeParameters) throws HttpException { return delete(url, null, isEncodeParameters); } public HttpResponse delete(String url, HttpPostParameter[] postParams, boolean isEncodeParameters) throws HttpException { return httpRequest(url, "DELETE", postParams, isEncodeParameters); } public HttpResponse post(String url) throws HttpException { return post(url, true); } public HttpResponse post(String url, boolean isEncodeParameters) throws HttpException { return post(url, null, isEncodeParameters); } public HttpResponse post(String url, HttpPostParameter[] postParams, boolean isEncodeParameters) throws HttpException { return httpRequest(url, "POST", postParams, isEncodeParameters); } public HttpResponse get(String url) throws HttpException { return get(url, true); } public HttpResponse get(String url, boolean isEncodeParameters) throws HttpException { return get(url, null, isEncodeParameters); } public HttpResponse get(String url, HttpPostParameter[] postParams, boolean isEncodeParameters) throws HttpException { return httpRequest(url, "GET", postParams, isEncodeParameters); } public HttpResponse httpRequest(String url, String httpMethod, HttpPostParameter[] postParams, boolean isEncodeParameters) throws HttpException { int retriedCount; int retry = retryCount; HttpResponse res = null; for (retriedCount = 0; retriedCount < retry; retriedCount++) { int responseCode = -1; log("发起请求：" + url); try { HttpURLConnection con = null; OutputStream osw = null; try { con = getConnection(url); setHeaders(con); if ("POST".equals(httpMethod)) { con.setRequestMethod("POST"); con.setRequestProperty("Content-Type", "application/x-www-form-urlencoded"); con.setDoOutput(true); con.setDoInput(true); String postParam = ""; if (postParams != null) { postParam = encodeParameters(postParams, isEncodeParameters); } byte[] bytes = postParam.getBytes(getRequestCharset()); log("请求长度: ", Integer.toString(bytes.length) + ",请求参数：" + postParam); // con.setRequestProperty("Content-Length", // Integer.toString(bytes.length)); osw = con.getOutputStream(); osw.write(bytes); osw.flush(); osw.close(); } else if ("DELETE".equals(httpMethod)) { con.setRequestMethod("DELETE"); } else { con.setRequestMethod("GET"); } res = new HttpResponse(con, getResponseCharset()); responseCode = con.getResponseCode(); if (DEBUG) { log("Response: "); Map<String, List<String>> responseHeaders = con .getHeaderFields(); for (String key : responseHeaders.keySet()) { List<String> values = responseHeaders.get(key); for (String value : values) { if (null != key) { log(key + ": " + value); } else { log(value); } } } } if (responseCode != OK) { if (responseCode < INTERNAL_SERVER_ERROR || retriedCount >= retryCount) { throw new HttpException(getCause(responseCode) + "\n" + res.asString(), responseCode); } } else { break; } } finally { try { osw.close(); } catch (Exception ignore) { } } } catch (IOException ioe) { if (retriedCount >= retryCount) { throw new HttpException(ioe.getMessage(), ioe, responseCode); } } try { if (DEBUG && null != res) { res.asString(); } log("Sleeping " + retryIntervalMillis + " millisecs for next retry."); Thread.sleep(retryIntervalMillis); } catch (InterruptedException ignore) { } } return res; } public String encodeParameters(HttpPostParameter[] postParams, boolean isEncodeParameters) { StringBuffer buf = new StringBuffer(); for (int j = 0; j < postParams.length; j++) { if (j != 0) { buf.append("&"); } if (isEncodeParameters) { buf.append(encode(postParams[j].name)).append("=") .append(encode(postParams[j].value)); } else { buf.append(postParams[j].name).append("=") .append(postParams[j].value); } } return buf.toString(); } /** * rfc3986 * * @param value * @return */ public String encode(String value) { String encoded = null; try { encoded = URLEncoder.encode(value, getRequestCharset()); } catch (UnsupportedEncodingException ignore) { } StringBuffer buf = new StringBuffer(encoded.length()); char focus; for (int i = 0; i < encoded.length(); i++) { focus = encoded.charAt(i); if (focus == '*') { buf.append("%2A"); } else if (focus == '+') { buf.append("%20"); } else if (focus == '%' && (i + 1) < encoded.length() && encoded.charAt(i + 1) == '7' && encoded.charAt(i + 2) == 'E') { buf.append('~'); i += 2; } else { buf.append(focus); } } return buf.toString(); } private void setHeaders(HttpURLConnection connection) { for (String key : requestHeaders.keySet()) { connection.addRequestProperty(key, requestHeaders.get(key)); log(key + ": " + requestHeaders.get(key)); } } public void setRequestHeader(String name, String value) { requestHeaders.put(name, value); } public String getRequestHeader(String name) { return requestHeaders.get(name); } private HttpURLConnection getConnection(String url) throws MalformedURLException, IOException { HttpURLConnection con = (HttpURLConnection) new URL(url) .openConnection(); if (connectionTimeout > 0) { con.setConnectTimeout(connectionTimeout); } if (readTimeout > 0) { con.setReadTimeout(readTimeout); } return con; } private static void log(String message) { if (DEBUG)