使用httpclient后台调用url

使用httpclient调用后台的时候接收url类型的参数需要使用UrlDecoder解码，调用的时候需要对参数使用UrlEncoder对参数进行编码，然后调用。

@SuppressWarnings("deprecation")@RequestMapping(value = "/wechatSigns", produces = "application/json;charset=utf-8")@ResponseBodypublic String wechatSigns(HttpServletRequest request, String p6, String p13) {Map<String, String> ret = new HashMap<String, String>();try {System.out.println("*****************************************p6:"+p6);URLDecoder.decode(p13);System.out.println("*****************************************p13:"+p13);String p10 = "{\"p1\":\"1\",\"p2\":\"\",\"p6\":\"" + p6 + "\",\"p13\":\"" + p13 + "\"}";p10 = URLEncoder.encode(p10, "utf-8");String url = WebserviceUtil.getGetSignatureUrl() + "?p10=" + p10;String result = WebConnectionUtil.sendGetRequest(url);JSONObject fromObject = JSONObject.fromObject(URLDecoder.decode(result, "utf-8"));System.out.println(fromObject);String resultCode = JSONObject.fromObject(fromObject.getString("meta")).getString("result");if ("0".equals(resultCode)) {JSONObject fromObject2 = JSONObject.fromObject(fromObject.get("data"));String timestamp = fromObject2.getString("timestamp");String appId = fromObject2.getString("appId");String nonceStr = fromObject2.getString("nonceStr");String signature = fromObject2.getString("signature");ret.put("timestamp", timestamp);ret.put("appId", appId);ret.put("nonceStr", nonceStr);ret.put("signature", signature);JSONObject jo = JSONObject.fromObject(ret);return ResultJsonBean.success(jo.toString());} else {String resultMsg = JSONObject.fromObject(fromObject.getString("meta")).getString("errMsg");return ResultJsonBean.fail(ConnectOauthCodeInfo.REQ_WECHATTOCKEN_CODE, resultMsg, "");}} catch (Exception e) {logger.error(e, e);return ResultJsonBean.fail(ConnectOauthCodeInfo.REQ_WECHATREQERROE_CODE,ConnectOauthCodeInfo.REQ_WECHATREQERROE_CODE, "");}}

<pre name="code" class="java">package com.dcits.djk.core.util;import java.io.BufferedInputStream;import java.io.BufferedOutputStream;import java.io.File;import java.io.FileOutputStream;import java.io.InputStream;import java.security.cert.CertificateException;import java.security.cert.X509Certificate;import java.util.ArrayList;import java.util.Iterator;import java.util.List;import java.util.Map;import java.util.Set;import javax.net.ssl.HostnameVerifier;import javax.net.ssl.SSLContext;import javax.net.ssl.SSLSession;import javax.net.ssl.TrustManager;import javax.net.ssl.X509TrustManager;import org.apache.http.HttpEntity;import org.apache.http.NameValuePair;import org.apache.http.client.entity.UrlEncodedFormEntity;import org.apache.http.client.methods.CloseableHttpResponse;import org.apache.http.client.methods.HttpGet;import org.apache.http.client.methods.HttpPost;import org.apache.http.entity.StringEntity;import org.apache.http.entity.mime.MultipartEntityBuilder;import org.apache.http.impl.client.CloseableHttpClient;import org.apache.http.impl.client.HttpClients;import org.apache.http.message.BasicNameValuePair;import org.apache.http.util.EntityUtils;import net.sf.json.JSONObject;public class WebConnectionUtil {public static String sendPostRequest(String url,Map paramMap,String userId){CloseableHttpClient httpclient=null;CloseableHttpResponse response=null;try{httpclient = HttpClients.createDefault();HttpPost httppost = new HttpPost(url);List<NameValuePair> formparams = new ArrayList<NameValuePair>();if(userId != null || "".equals(userId) ){formparams.add(new BasicNameValuePair("userId",userId));}Set keSet=paramMap.entrySet();for(Iterator itr=keSet.iterator();itr.hasNext();){Map.Entry me=(Map.Entry)itr.next();Object key=me.getKey();Object valueObj=me.getValue();String[] value=new String[1];if(valueObj == null){value[0] = "";}else{if(valueObj instanceof String[]){              value=(String[])valueObj;          }else{              value[0]=valueObj.toString();          }}for(int k=0;k<value.length;k++){  formparams.add(new BasicNameValuePair(key.toString(),StringUtil.filterSpecialChar(value[k])));        }}UrlEncodedFormEntity uefEntity = new UrlEncodedFormEntity(formparams, "UTF-8");httppost.setEntity(uefEntity);response = httpclient.execute(httppost);if(response.getStatusLine().getStatusCode() == 200){HttpEntity entity = response.getEntity();String resultInfo = EntityUtils.toString(entity, "UTF-8");return resultInfo;}else{return response.getStatusLine().getStatusCode() + "";}}catch(Exception e){e.printStackTrace();}finally{try {if(httpclient != null){httpclient.close();}} catch (Exception e) {e.printStackTrace();}try {if(response != null){response.close();}} catch (Exception e) {e.printStackTrace();}}return "404";}public static String sendPostRequest(String url,Map paramMap){CloseableHttpClient httpclient=null;CloseableHttpResponse response=null;try{httpclient = HttpClients.createDefault();HttpPost httppost = new HttpPost(url);List<NameValuePair> formparams = new ArrayList<NameValuePair>();Set keSet=paramMap.entrySet();for(Iterator itr=keSet.iterator();itr.hasNext();){Map.Entry me=(Map.Entry)itr.next();Object key=me.getKey();Object valueObj=me.getValue();String[] value=new String[1];if(valueObj == null){value[0] = "";}else{if(valueObj instanceof String[]){              value=(String[])valueObj;          }else{              value[0]=valueObj.toString();          }}for(int k=0;k<value.length;k++){  formparams.add(new BasicNameValuePair(key.toString(),StringUtil.filterSpecialChar(value[k])));        }}UrlEncodedFormEntity uefEntity = new UrlEncodedFormEntity(formparams, "UTF-8");httppost.setEntity(uefEntity);response = httpclient.execute(httppost);if(response.getStatusLine().getStatusCode() == 200){HttpEntity entity = response.getEntity();String resultInfo = EntityUtils.toString(entity, "UTF-8");return resultInfo;}else{return response.getStatusLine().getStatusCode() + "";}}catch(Exception e){e.printStackTrace();}finally{try {if(httpclient != null){httpclient.close();}} catch (Exception e) {e.printStackTrace();}try {if(response != null){response.close();}} catch (Exception e) {e.printStackTrace();}}return "404";}public static String downloadFileToImgService(String remoteUtl,String imgUrl,String tempUrl){CloseableHttpClient httpclientRemote=null;CloseableHttpResponse responseRemote=null;CloseableHttpClient httpclientImg=null;CloseableHttpResponse responseImg=null;try{httpclientRemote = HttpClients.createDefault();HttpGet httpgetRemote = new HttpGet(remoteUtl);responseRemote = httpclientRemote.execute(httpgetRemote);if(responseRemote.getStatusLine().getStatusCode() != 200){return "";}HttpEntity resEntityRemote = responseRemote.getEntity();InputStream isRemote = resEntityRemote.getContent();//写入文件File file = null;boolean isDownSuccess = true;BufferedOutputStream bos = null;try{BufferedInputStream bif = new BufferedInputStream(isRemote);byte bf[] = new byte[28];bif.read(bf);String suffix = FileTypeUtil.getSuffix(bf);file = new File(tempUrl + "/" + UuidUtil.get32Uuid()+suffix);bos = new BufferedOutputStream(new FileOutputStream(file));if(!file.exists()){file.createNewFile();}bos.write(bf, 0, 28);byte b[] = new byte[1024*3];int len = 0;while((len=bif.read(b)) != -1){bos.write(b, 0, len);}}catch(Exception e){e.printStackTrace();isDownSuccess = false;}finally{try {if(bos != null){bos.close();}} catch (Exception e) {e.printStackTrace();}}if(!isDownSuccess){return "";}httpclientImg = HttpClients.createDefault();HttpPost httpPostImg = new HttpPost(imgUrl);MultipartEntityBuilder requestEntity = MultipartEntityBuilder.create();requestEntity.addBinaryBody("userFile", file);HttpEntity httprequestImgEntity = requestEntity.build();httpPostImg.setEntity(httprequestImgEntity);responseImg = httpclientImg.execute(httpPostImg);if(responseImg.getStatusLine().getStatusCode() != 200){return "";}HttpEntity entity = responseImg.getEntity();String json = EntityUtils.toString(entity, "UTF-8");json = json.replaceAll("\"","");String[] jsonMap = json.split(",");String resultInfo = "";for(int i = 0;i < jsonMap.length;i++){String str = jsonMap[i];if(str.startsWith("url:")){resultInfo = str.substring(4);}else if(str.startsWith("{url:")){resultInfo = str.substring(5);}}if(resultInfo.endsWith("}")){resultInfo = resultInfo.substring(0,resultInfo.length()-1);}try{if(file != null){file.delete();}}catch(Exception e){e.printStackTrace();}return resultInfo;}catch(Exception e){e.printStackTrace();}finally{try {if(httpclientRemote != null){httpclientRemote.close();}} catch (Exception e) {e.printStackTrace();}try {if(responseRemote != null){responseRemote.close();}} catch (Exception e) {e.printStackTrace();}try {if(httpclientImg != null){httpclientImg.close();}} catch (Exception e) {e.printStackTrace();}try {if(responseImg != null){responseImg.close();}} catch (Exception e) {e.printStackTrace();}}return "";}public static String downloadFileToImgService(File file,String imgUrl){CloseableHttpClient httpclientImg=null;CloseableHttpResponse responseImg=null;try{httpclientImg = HttpClients.createDefault();HttpPost httpPostImg = new HttpPost(imgUrl);MultipartEntityBuilder requestEntity = MultipartEntityBuilder.create();requestEntity.addBinaryBody("userFile", file);HttpEntity httprequestImgEntity = requestEntity.build();httpPostImg.setEntity(httprequestImgEntity);responseImg = httpclientImg.execute(httpPostImg);if(responseImg.getStatusLine().getStatusCode() != 200){return "";}HttpEntity entity = responseImg.getEntity();String json = EntityUtils.toString(entity, "UTF-8");json = json.replaceAll("\"","");String[] jsonMap = json.split(",");String resultInfo = "";for(int i = 0;i < jsonMap.length;i++){String str = jsonMap[i];if(str.startsWith("url:")){resultInfo = str.substring(4);}else if(str.startsWith("{url:")){resultInfo = str.substring(5);}}if(resultInfo.endsWith("}")){resultInfo = resultInfo.substring(0,resultInfo.length()-1);}return resultInfo;}catch(Exception e){e.printStackTrace();}finally{try {if(httpclientImg != null){httpclientImg.close();}} catch (Exception e) {e.printStackTrace();}try {if(responseImg != null){responseImg.close();}} catch (Exception e) {e.printStackTrace();}}return "";}public static String sendGetRequest(String url){CloseableHttpClient httpclient=null;CloseableHttpResponse response=null;try{httpclient = HttpClients.createDefault();HttpGet httpGet = new HttpGet(url);response = httpclient.execute(httpGet);if(response.getStatusLine().getStatusCode() == 200){HttpEntity entity = response.getEntity();String resultInfo = EntityUtils.toString(entity, "UTF-8");return resultInfo;}else{return response.getStatusLine().getStatusCode() + "";}}catch(Exception e){e.printStackTrace();}finally{try {if(httpclient != null){httpclient.close();}} catch (Exception e) {e.printStackTrace();}try {if(response != null){response.close();}} catch (Exception e) {e.printStackTrace();}}return "404";}public static String sendHttpsPostRequestUseStream(String url,String param){CloseableHttpClient httpclient=null;CloseableHttpResponse response=null;try{SSLContext ctx = SSLContext.getInstance("TLS");X509TrustManager xtm = new X509TrustManager() {public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException {}public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException {}public X509Certificate[] getAcceptedIssuers() {return null;}};TrustManager[] tm = {xtm};ctx.init(null,tm,null);HostnameVerifier hv = new HostnameVerifier(){public boolean verify(String arg0, SSLSession arg1) {return true;}};httpclient = HttpClients.custom().setSSLHostnameVerifier(hv).setSSLContext(ctx).build();HttpPost httpPost = new HttpPost(url);StringEntity strEntity = new StringEntity(param,"utf-8");httpPost.setEntity(strEntity); response = httpclient.execute(httpPost);if(response.getStatusLine().getStatusCode() == 200){HttpEntity entity = response.getEntity();String resultInfo = EntityUtils.toString(entity, "UTF-8");return resultInfo;}else{return response.getStatusLine().getStatusCode() + "";}}catch(Exception e){e.printStackTrace();}finally{try {if(httpclient != null){httpclient.close();}} catch (Exception e) {e.printStackTrace();}try {if(response != null){response.close();}} catch (Exception e) {e.printStackTrace();}}return "404";}public static String sendHttpsPostRequestUseStream(String url,Map paramMap){CloseableHttpClient httpclient=null;CloseableHttpResponse response=null;try{SSLContext ctx = SSLContext.getInstance("TLS");X509TrustManager xtm = new X509TrustManager() {public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException {}public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException {}public X509Certificate[] getAcceptedIssuers() {return null;}};TrustManager[] tm = {xtm};ctx.init(null,tm,null);HostnameVerifier hv = new HostnameVerifier(){public boolean verify(String arg0, SSLSession arg1) {return true;}};httpclient = HttpClients.custom().setSSLHostnameVerifier(hv).setSSLContext(ctx).build();HttpPost httpPost = new HttpPost(url);List<NameValuePair> formparams = new ArrayList<NameValuePair>();Set keSet=paramMap.entrySet();for(Iterator itr=keSet.iterator();itr.hasNext();){Map.Entry me=(Map.Entry)itr.next();Object key=me.getKey();Object valueObj=me.getValue();String[] value=new String[1];if(valueObj == null){value[0] = "";}else{if(valueObj instanceof String[]){              value=(String[])valueObj;          }else{              value[0]=valueObj.toString();          }}for(int k=0;k<value.length;k++){  formparams.add(new BasicNameValuePair(key.toString(),StringUtil.filterSpecialChar(value[k])));        }}UrlEncodedFormEntity uefEntity = new UrlEncodedFormEntity(formparams, "UTF-8");httpPost.setEntity(uefEntity); response = httpclient.execute(httpPost);if(response.getStatusLine().getStatusCode() == 200){HttpEntity entity = response.getEntity();String resultInfo = EntityUtils.toString(entity, "UTF-8");return resultInfo;}else{return response.getStatusLine().getStatusCode() + "";}}catch(Exception e){e.printStackTrace();}finally{try {if(httpclient != null){httpclient.close();}} catch (Exception e) {e.printStackTrace();}try {if(response != null){response.close();}} catch (Exception e) {e.printStackTrace();}}return "404";}public static String sendHttpsGetRequestUseStream(String url){CloseableHttpClient httpclient=null;CloseableHttpResponse response=null;try{SSLContext ctx = SSLContext.getInstance("TLS");X509TrustManager xtm = new X509TrustManager() {public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException {}public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException {}public X509Certificate[] getAcceptedIssuers() {return null;}};TrustManager[] tm = {xtm};ctx.init(null,tm,null);HostnameVerifier hv = new HostnameVerifier(){public boolean verify(String arg0, SSLSession arg1) {return true;}};httpclient = HttpClients.custom().setSSLHostnameVerifier(hv).setSSLContext(ctx).build();HttpGet httpGet = new HttpGet(url); response = httpclient.execute(httpGet);if(response.getStatusLine().getStatusCode() == 200){HttpEntity entity = response.getEntity();String resultInfo = EntityUtils.toString(entity, "UTF-8");return resultInfo;}else{return response.getStatusLine().getStatusCode() + "";}}catch(Exception e){e.printStackTrace();}finally{try {if(httpclient != null){httpclient.close();}} catch (Exception e) {e.printStackTrace();}try {if(response != null){response.close();}} catch (Exception e) {e.printStackTrace();}}return "404";}public static String sendHttpsPostRequestUseStreamForYZL(String url,OauthToken param){CloseableHttpClient httpclient=null;CloseableHttpResponse response=null;try{SSLContext ctx = SSLContext.getInstance("TLS");X509TrustManager xtm = new X509TrustManager() {public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException {}public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException {}public X509Certificate[] getAcceptedIssuers() {return null;}};TrustManager[] tm = {xtm};ctx.init(null,tm,null);HostnameVerifier hv = new HostnameVerifier(){public boolean verify(String arg0, SSLSession arg1) {return true;}};httpclient = HttpClients.custom().setSSLHostnameVerifier(hv).setSSLContext(ctx).build();HttpPost httpPost = new HttpPost(url);StringEntity strEntity = new StringEntity(param.toString(),"utf-8");httpPost.setEntity(strEntity);httpPost.addHeader("Content-Type", "application/x-www-form-urlencoded"); response = httpclient.execute(httpPost);if(response.getStatusLine().getStatusCode() == 200){HttpEntity entity = response.getEntity();String resultInfo = EntityUtils.toString(entity, "UTF-8");return resultInfo;}else{return response.getStatusLine().getStatusCode() + "";}}catch(Exception e){e.printStackTrace();}finally{try {if(httpclient != null){httpclient.close();}} catch (Exception e) {e.printStackTrace();}try {if(response != null){response.close();}} catch (Exception e) {e.printStackTrace();}}return "404";}}