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package com.docus.bgts.utils;
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import com.alibaba.fastjson.JSON;
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import org.apache.http.HttpEntity;
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import org.apache.http.NameValuePair;
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import org.apache.http.client.ClientProtocolException;
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import org.apache.http.client.entity.UrlEncodedFormEntity;
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import org.apache.http.client.methods.*;
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import org.apache.http.client.utils.URIBuilder;
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import org.apache.http.entity.ContentType;
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import org.apache.http.entity.StringEntity;
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import org.apache.http.impl.client.CloseableHttpClient;
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import org.apache.http.impl.client.HttpClients;
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import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
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import org.apache.http.message.BasicNameValuePair;
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import org.apache.http.util.EntityUtils;
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import java.io.IOException;
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import java.io.UnsupportedEncodingException;
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import java.net.URISyntaxException;
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import java.util.ArrayList;
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import java.util.Map;
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public class HttpUtils {
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private static PoolingHttpClientConnectionManager cm;
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private static String EMPTY_STR = "";
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private static String UTF_8 = "UTF-8";
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private static void init() {
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if (cm == null) {
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cm = new PoolingHttpClientConnectionManager();
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cm.setMaxTotal(50);// 整个连接池最大连接数
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cm.setDefaultMaxPerRoute(5);// 每路由最大连接数，默认值是2
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}
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}
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/**
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* 通过连接池获取HttpClient
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*
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* @return
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*/
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private static CloseableHttpClient getHttpClient() {
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init();
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return HttpClients.custom().setConnectionManager(cm).build();
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}
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/**
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* @param url
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* @return
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*/
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public static String get(String url) {
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HttpGet httpGet = new HttpGet(url);
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return getResult(httpGet);
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}
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/**
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* @param url、params
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* @return
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*/
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public static String get(String url, Map<String, String > params) throws URISyntaxException {
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URIBuilder ub = new URIBuilder();
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ub.setPath(url);
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ArrayList<NameValuePair> pairs = covertParams2NVPS(params);
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ub.setParameters(pairs);
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HttpGet httpGet = new HttpGet(ub.build());
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return getResult(httpGet);
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}
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/**
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* @param url、headers、params
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* @return
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*/
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public static String get(String url, Map<String, Object> headers, Map<String, String> params)
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throws URISyntaxException {
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URIBuilder ub = new URIBuilder();
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ub.setPath(url);
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if (params != null) {
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ArrayList<NameValuePair> pairs = covertParams2NVPS(params);
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ub.setParameters(pairs);
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}
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HttpGet httpGet = new HttpGet(ub.build());
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for (Map.Entry<String, Object> param : headers.entrySet()) {
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httpGet.addHeader(param.getKey(), String.valueOf(param.getValue()));
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}
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return getResult(httpGet);
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}
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/**
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* @param url
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* @return
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*/
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public static String post(String url) {
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HttpPost httpPost = new HttpPost(url);
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return getResult(httpPost);
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}
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/**
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* @param url、params
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* @return
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*/
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public static String post(String url, Map<String, String> params) throws UnsupportedEncodingException {
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HttpPost httpPost = new HttpPost(url);
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httpPost.setEntity(new UrlEncodedFormEntity(covertParams2NVPS(params), "utf-8"));//设置表单提交编码
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// httpPost.setEntity(new StringEntity(JSON.toJSONString(params), ContentType.APPLICATION_FORM_URLENCODED));
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return getResult(httpPost);
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}
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public static String post(String url, Object params, Map<String, Object> head) throws UnsupportedEncodingException {
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HttpPost httpPost = new HttpPost(url);
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System.out.println(params);
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httpPost.setEntity(new StringEntity(params.toString()));//设置表单提交编码
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if (params != null) {
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for (Map.Entry<String, Object> param : head.entrySet()) {
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httpPost.addHeader(param.getKey(), String.valueOf(param.getValue()));
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}
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}
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// httpPost.setEntity(new StringEntity(JSON.toJSONString(params), ContentType.APPLICATION_FORM_URLENCODED));
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return getResult(httpPost);
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}
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private static ArrayList<NameValuePair> covertParams2NVPS(Map<String, String> params) {
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ArrayList<NameValuePair> pairs = new ArrayList<NameValuePair>();
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for (Map.Entry<String, String> param : params.entrySet()) {
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if (param.getValue() != null) {
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pairs.add(new BasicNameValuePair(param.getKey(), param.getValue()));
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}
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}
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return pairs;
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}
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/**
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* @param url、headers、params
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* @return
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*/
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public static String post(String url, Map<String, Object> headers, Map<String, Object> params)
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throws UnsupportedEncodingException {
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HttpPost httpPost = new HttpPost(url);
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System.out.println(params);
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if (params != null) {
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for (Map.Entry<String, Object> param : headers.entrySet()) {
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httpPost.addHeader(param.getKey(), String.valueOf(param.getValue()));
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}
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}
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httpPost.setEntity(new StringEntity(JSON.toJSONString(params), ContentType.APPLICATION_JSON));
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return getResult(httpPost);
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}
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/**
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* 处理Http请求
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*
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* @param request
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* @return
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*/
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private static String getResult(HttpRequestBase request) {
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// CloseableHttpClient httpClient = HttpClients.createDefault();
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CloseableHttpClient httpClient = getHttpClient();
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try {
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CloseableHttpResponse response = httpClient.execute(request);
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// response.getStatusLine().getStatusCode();
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HttpEntity entity = response.getEntity();
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if (entity != null) {
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// long len = entity.getContentLength();// -1 表示长度未知
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String result = EntityUtils.toString(entity, UTF_8);
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response.close();
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// httpClient.close();
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return result;
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}
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} catch (ClientProtocolException e) {
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e.printStackTrace();
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} catch (IOException e) {
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e.printStackTrace();
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} finally {
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}
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return EMPTY_STR;
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}
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/**
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* 处理Http请求
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*
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* @param requestBuilder
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* @return
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*/
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private static String getResult(RequestBuilder requestBuilder) {
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// CloseableHttpClient httpClient = HttpClients.createDefault();
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CloseableHttpClient httpClient = getHttpClient();
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try {
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CloseableHttpResponse response = httpClient.execute(requestBuilder.build());
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// response.getStatusLine().getStatusCode();
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HttpEntity entity = response.getEntity();
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if (entity != null) {
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// long len = entity.getContentLength();// -1 表示长度未知
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String result = EntityUtils.toString(entity, UTF_8);
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response.close();
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// httpClient.close();
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return result;
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}
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} catch (ClientProtocolException e) {
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e.printStackTrace();
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} catch (IOException e) {
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e.printStackTrace();
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} finally {
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}
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return EMPTY_STR;
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}
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}
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lzy
4 years ago