HttpUtil工具类

代码：


import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.List;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.ParseException;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.message.BasicHeader;
import org.apache.http.protocol.HTTP;
import org.apache.http.util.EntityUtils;
import org.apache.log4j.Logger;
import org.codehaus.jettison.json.JSONException;
import org.codehaus.jettison.json.JSONObject;public class HttpUtils {static Logger logger = Logger.getLogger(HttpUtils.class);public static JSONObject httpGet(String urlStr) throws Exception {URL url = new URL(urlStr);HttpURLConnection conn = (HttpURLConnection) url.openConnection();conn.setRequestMethod("GET");conn.setRequestProperty("Content-Type", "text/json;charset=utf-8");BufferedReader in = new BufferedReader(new InputStreamReader(conn.getInputStream(), "UTF-8"));StringBuffer buf = new StringBuffer();String inputLine = in.readLine();while (inputLine != null) {buf.append(inputLine).append("\r\n");inputLine = in.readLine();}in.close();//return new JSONObject(buf.toString().trim());}public static String httpGet1(String urlStr) throws Exception {URL url = new URL(urlStr);HttpURLConnection conn = (HttpURLConnection) url.openConnection();conn.setRequestMethod("GET");conn.setRequestProperty("Content-Type", "text/json;charset=utf-8");BufferedReader in = new BufferedReader(new InputStreamReader(conn.getInputStream(), "UTF-8"));StringBuffer buf = new StringBuffer();String inputLine = in.readLine();while (inputLine != null) {buf.append(inputLine).append("\r\n");inputLine = in.readLine();}in.close();//return buf.toString().trim();}public static String httpGet2(String urlStr) throws Exception {URL url = new URL(urlStr);HttpURLConnection conn = (HttpURLConnection) url.openConnection();conn.setRequestMethod("GET");conn.setRequestProperty("Content-Type", "application/json; charset=utf-8");BufferedReader in = new BufferedReader(new InputStreamReader(conn.getInputStream(), "UTF-8"));StringBuffer buf = new StringBuffer();String inputLine = in.readLine();while (inputLine != null) {buf.append(inputLine).append("\r\n");inputLine = in.readLine();}in.close();//return buf.toString().trim();}public static String httpPut(String urlStr) throws Exception {URL url = new URL(urlStr);HttpURLConnection conn = (HttpURLConnection) url.openConnection();conn.setRequestMethod("PUT");conn.setRequestProperty("Content-Type", "application/json; charset=utf-8");int code = conn.getResponseCode();BufferedReader in = new BufferedReader(new InputStreamReader(conn.getInputStream(), "UTF-8"));logger.error("code=" + conn.getResponseCode());StringBuffer buf = new StringBuffer();String inputLine = in.readLine();while (inputLine != null) {buf.append(inputLine).append("\r\n");inputLine = in.readLine();}in.close();//return (buf.toString().trim()) != null ? (buf.toString().trim()) : (code + "");}public static JSONObject httpPost(String urlStr) throws Exception {URL url = new URL(urlStr);HttpURLConnection conn = (HttpURLConnection) url.openConnection();conn.setRequestMethod("POST");conn.setRequestProperty("Content-Type", "text/json;charset=utf-8");BufferedReader in = new BufferedReader(new InputStreamReader(conn.getInputStream(), "UTF-8"));StringBuffer buf = new StringBuffer();String inputLine = in.readLine();while (inputLine != null) {buf.append(inputLine).append("\r\n");inputLine = in.readLine();}in.close();//return new JSONObject(buf.toString().trim());}public static JSONObject httpPost(String urlStr, String postText) throws Exception {URL url = new URL(urlStr);HttpURLConnection conn = (HttpURLConnection) url.openConnection();conn.setRequestMethod("POST");byte[] bytes = postText.getBytes("utf-8");OutputStream os = conn.getOutputStream();os.write(bytes);os.close();//BufferedReader in = new BufferedReader(new InputStreamReader(conn.getInputStream()));StringBuffer buf = new StringBuffer();String inputLine = in.readLine();while (inputLine != null) {buf.append(inputLine).append("\r\n");//inputLine = in.readLine();}in.close();//return new JSONObject(buf.toString().trim());}public static Object post(List<NameValuePair> message, String to)throws ParseException, IOException, JSONException {HttpPost post = new HttpPost(to);UrlEncodedFormEntity params = new UrlEncodedFormEntity(message, "UTF-8");post.setEntity(params);System.out.println(("[] Post \"" + message + "\" to " + post.getURI()));CloseableHttpClient client = HttpClients.createDefault();CloseableHttpResponse response = client.execute(post);int statusCode = response.getStatusLine().getStatusCode();System.out.println("[] Server Status Code: " + statusCode);String respString = null;HttpEntity entity = response.getEntity();if (entity != null) {respString = EntityUtils.toString(entity, "UTF-8");}System.out.println("[] Server return: " + respString);EntityUtils.consume(entity);JSONObject result = new JSONObject(respString.trim());if (result != null && result.has("success") && result.opt("success").equals("true")) {return result.opt("data");} else {logger.info(message);return "error";}}public static String httpPostApplication(String urlStr) throws Exception {URL url = new URL(urlStr);HttpURLConnection conn = (HttpURLConnection) url.openConnection();conn.setRequestMethod("POST");conn.setRequestProperty("Content-Type", "application/json;charset=utf-8");BufferedReader in = new BufferedReader(new InputStreamReader(conn.getInputStream(), "UTF-8"));StringBuffer buf = new StringBuffer();String inputLine = in.readLine();while (inputLine != null) {buf.append(inputLine).append("\r\n");inputLine = in.readLine();}in.close();//return buf.toString().trim();}public static String RestfulGet(String url) {String returnString = "";try {URL restServiceURL = new URL(url);HttpURLConnection httpConnection = (HttpURLConnection) restServiceURL.openConnection();httpConnection.setRequestMethod("GET");httpConnection.setRequestProperty("Accept", "application/json");httpConnection.setRequestProperty("Accept-Charset", "utf-8");httpConnection.setRequestProperty("contentType", "utf-8");if (httpConnection.getResponseCode() != 200) {throw new RuntimeException("HTTP GET Request Failed with Error code : " + httpConnection.getResponseCode());}BufferedReader responseBuffer = new BufferedReader(new InputStreamReader((httpConnection.getInputStream()), "utf-8"));String output = responseBuffer.readLine();// System.out.println("Output from Server: \n");StringBuffer buf = new StringBuffer();while (output != null) {buf.append(output).append("\r\n");output = responseBuffer.readLine();}responseBuffer.close();httpConnection.disconnect();returnString = buf.toString().trim();} catch (Exception e) {e.printStackTrace();}return returnString;}public static String RestfulPost(String url, String input) {String result = "";try {URL targetUrl = new URL(url);HttpURLConnection httpConnection = (HttpURLConnection) targetUrl.openConnection();httpConnection.setDoOutput(true);httpConnection.setRequestMethod("POST");httpConnection.setRequestProperty("Charsert", "UTF-8");httpConnection.setRequestProperty("Content-Type", "application/json");OutputStream outputStream = httpConnection.getOutputStream();outputStream.write(input.getBytes());outputStream.flush();if (httpConnection.getResponseCode() != 200) {throw new RuntimeException("Failed : HTTP error code : " + httpConnection.getResponseCode());}BufferedReader responseBuffer = new BufferedReader(new InputStreamReader((httpConnection.getInputStream()), "UTF-8"));String output;System.out.println("Output from Server:\n");StringBuffer buf = new StringBuffer();while ((output = responseBuffer.readLine()) != null) {buf.append(output).append("\r\n");}httpConnection.disconnect();responseBuffer.close();result = buf.toString().trim();} catch (MalformedURLException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}return result;}public static org.codehaus.jettison.json.JSONObject post(net.sf.json.JSONObject json, String to)throws ParseException, IOException, JSONException {CloseableHttpClient client = HttpClients.createDefault();HttpPost post = new HttpPost(to);post.setHeader("Content-Type", "application/json");org.codehaus.jettison.json.JSONObject result = null;java.io.InputStream inStream = null;try {StringEntity s = new StringEntity(json.toString(), "utf-8");s.setContentEncoding(new BasicHeader(HTTP.CONTENT_TYPE, "application/json"));post.setEntity(s);// 发送请求HttpResponse httpResponse = client.execute(post);// 获取响应输入流inStream = httpResponse.getEntity().getContent();BufferedReader reader = new BufferedReader(new InputStreamReader(inStream, "utf-8"));StringBuilder strber = new StringBuilder();String line = null;while ((line = reader.readLine()) != null) {strber.append(line + "\n");}inStream.close();if (httpResponse.getStatusLine().getStatusCode() == 200) {result = new org.codehaus.jettison.json.JSONObject(strber.toString());} else {logger.error("请求服务端失败" + json);}} catch (Exception e) {e.printStackTrace();}return result;}public static net.sf.json.JSONObject doPutOrPost(String type, String urlString, net.sf.json.JSONObject jsonObject,String callMethed) {try {String result = "";String info = callMethed + ",调用SDK的restful接口URL:" + urlString + ",请求参数:" + jsonObject.toString() + ",请求方式:"+ type;logger.info(info);URL url = new URL(urlString);int code = 0;// 打开restful链接HttpURLConnection conn = (HttpURLConnection) url.openConnection();// 提交模式conn.setRequestMethod(type);conn.setConnectTimeout(200000);// 连接超时 单位毫秒conn.setReadTimeout(200000);// 读取超时 单位毫秒conn.setDoOutput(true);// 是否输入参数conn.setDoInput(true);// 设置访问提交模式，表单提交conn.setRequestProperty("Content-Type", "application/json");// 设置请求头// conn.setRequestProperty(SDKKeyName, SDKKey);// conn.setRequestProperty(SDKValueName, SDKValue);// ----------------传入数据----------------------OutputStream outputStream = conn.getOutputStream();outputStream.write(jsonObject.toString().getBytes());code = conn.getResponseCode();outputStream.flush();// 判断是否创建成功logger.info(info + ",调用所得code值为:" + code);System.out.println("---------code=" + code);if (code == 200) {// 执行成功BufferedReader reader = new BufferedReader(new InputStreamReader(conn.getInputStream(), "utf-8"));StringBuffer buffer = new StringBuffer();String line = "";while ((line = reader.readLine()) != null) {buffer.append(line);}reader.close();result = buffer.toString();logger.info(info + ",调用结果信息为:" + result);net.sf.json.JSONObject jsonObj = net.sf.json.JSONObject.fromObject(result);return jsonObj;} else {BufferedReader reader = new BufferedReader(new InputStreamReader(conn.getErrorStream(), "utf-8"));StringBuffer buffer = new StringBuffer();String line = "";while ((line = reader.readLine()) != null) {buffer.append(line);}reader.close();result = buffer.toString();logger.info(info + ",调用结果信息为:" + result);net.sf.json.JSONObject jsonObj = net.sf.json.JSONObject.fromObject(result);return jsonObj;}} catch (Exception e) {logger.error("请求失败", e);return null;}}public static int intOf(Object obj, int initValue) {// 1.判断参数是否合法if (obj == null || "".equals(obj)) {return initValue;} else {try {return Integer.parseInt(obj.toString());} catch (Exception e) {e.getMessage();return initValue;}}}
}

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