puzhibing
2024-02-05 640ff18d2d7f4be02ddb7f8f75e899f05545eb98
cloud-server-management/src/main/java/com/dsh/course/util/httpClinet/HttpClientUtil.java
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package com.dsh.course.util.httpClinet;
import com.alibaba.fastjson.JSON;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.apache.http.NameValuePair;
import org.apache.http.client.config.RequestConfig;
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.conn.ssl.SSLConnectionSocketFactory;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.ssl.SSLContexts;
import org.apache.http.util.EntityUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;
import javax.net.ssl.SSLContext;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.nio.charset.Charset;
import java.security.KeyStore;
import java.text.SimpleDateFormat;
import java.util.*;
import java.util.concurrent.TimeUnit;
/**
 * http工具类
 */
@Component
public class HttpClientUtil {
    private static Logger logger = LoggerFactory.getLogger(HttpClientUtil.class);
    private PoolingHttpClientConnectionManager connectionManager;
    public HttpClientUtil(){
        //1.创建连接池管理器
        connectionManager = new PoolingHttpClientConnectionManager(60000,
                TimeUnit.MILLISECONDS);
        connectionManager.setMaxTotal(1000);
        connectionManager.setDefaultMaxPerRoute(50);
    }
    /**
     * 创建一个httpClient对象
     */
    private CloseableHttpClient getHttpCline(){
        return  HttpClients.custom()
                .setConnectionManager(connectionManager)
                .disableAutomaticRetries()
                .build();
    }
    private RequestConfig getRequestConfig(){
        RequestConfig.Builder builder = RequestConfig.custom();
        builder.setSocketTimeout(60000)//3.1设置客户端等待服务端返回数据的超时时间
                .setConnectTimeout(30000)//3.2设置客户端发起TCP连接请求的超时时间
                .setExpectContinueEnabled(true)
                .setConnectionRequestTimeout(30000);//3.3设置客户端从连接池获取链接的超时时间
        return builder.build();
    }
    /**
     * 创建一个POST请求实例
     * @param url       请求地址
     * @param params    请求参数
     */
    private CloseableHttpResponse setPostHttpRequset(String url, Map<String, Object> params, Map<String, String> header, String contentType) throws Exception{
        HttpPost httpPost = new HttpPost(url);
        httpPost.setConfig(this.getRequestConfig());
        if(null != header){
            for(String key : header.keySet()){
                httpPost.setHeader(key, header.get(key));
            }
        }
        List<NameValuePair> list = new ArrayList<>();
        if(null != params){
            Set<String> keys = params.keySet();
            for(String key : keys){
                list.add(new BasicNameValuePair(key, null == params.get(key) ? null : params.get(key).toString()));
            }
        }
        switch (contentType){
            case "form":
                httpPost.setEntity(new UrlEncodedFormEntity(list, "UTF-8"));
                break;
            case "json":
                ObjectMapper objectMapper = new ObjectMapper();
                String s =objectMapper.writeValueAsString(params);
                httpPost.setEntity(new StringEntity(s, ContentType.create(ContentType.APPLICATION_JSON.getMimeType(), Charset.forName("UTF-8"))));
                break;
        }
        return getHttpCline().execute(httpPost);
    }
    /**
     * 获取get请求实例
     * @param url       请求地址
     * @param params    请求参数
     */
    private CloseableHttpResponse setGetHttpRequset(String url, Map<String, Object> params, Map<String, String> header) throws Exception{
        StringBuffer sb = new StringBuffer();
        String p = "";
        if(null != params){
            Set<String> keys = params.keySet();
            for(String key : keys){
                sb.append(key + "=" + params.get(key) + "&");
            }
            p = "?" + sb.substring(0, sb.length() - 1);
        }
        HttpGet httpGet = new HttpGet(url + p);
        httpGet.setConfig(getRequestConfig());
        if(null != header){
            for(String key : header.keySet()){
                httpGet.setHeader(key, header.get(key));
            }
        }
        return getHttpCline().execute(httpGet);
    }
    /**
     * 发送http请求
     * @param mothed        "GET、POST、PUT、HEAD、DELETE、HEAD、OPTIONS"
     * @param url           请求地址
     * @param params        请求参数
     * @param header        请求头
     * @param contentType   参数请求方式form/json
     * @return
     */
    public HttpResult pushHttpRequset(String mothed, String url, Map<String, Object> params, Map<String, String> header, String contentType) throws Exception{
        String randome = UUID.randomUUID().toString();
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.S");
        logger.info(sdf.format(new Date()) + "----(" + randome + ")请求参数:" + JSON.toJSONString(params));
        CloseableHttpResponse httpResponse = null;
        switch (mothed){
            case "GET":
                httpResponse = this.setGetHttpRequset(url, params, header);
                break;
            case "POST":
                httpResponse = setPostHttpRequset(url, params, header, contentType);
                break;
        }
        int statusCode = httpResponse.getStatusLine().getStatusCode();
        String content = EntityUtils.toString(httpResponse.getEntity(), "UTF-8");
        logger.info(sdf.format(new Date()) + "----(" + randome + ")返回结果:" + content);
        HttpResult httpResult = HttpResult.getHttpResult(statusCode, content);
        this.close(httpResponse);
        return httpResult;
    }
    /**
     * 发送XML请求
     * @param url       请求地址
     * @param xml       XML数据
     * @param header    自定义请求头
     * @return
     */
    public HttpResult pushHttpRequsetXml(String url, String xml, Map<String, String> header) throws Exception{
        HttpPost httpPost = new HttpPost(url);
        httpPost.setConfig(getRequestConfig());
        for(String key : header.keySet()){
            httpPost.setHeader(key, header.get(key));
        }
        httpPost.setHeader("Content-Type", "application/xml");
        httpPost.setEntity(new StringEntity(xml, "UTF-8"));
        CloseableHttpResponse httpResponse = getHttpCline().execute(httpPost);
        int statusCode = httpResponse.getStatusLine().getStatusCode();
        String content = EntityUtils.toString(httpResponse.getEntity(), "UTF-8");
        HttpResult httpResult = HttpResult.getHttpResult(statusCode, content);
        this.close(httpResponse);
        return httpResult;
    }
    /**
     * 请求https发送XML请求
     * @param url           接口路径
     * @param xml           内容
     * @param header        请求头
     * @param certPassword      证书密码
     * @param certPath      证书路径
     * @param certType      证书类型
     * @return
     * @throws Exception
     */
    public String pushHttpsRequsetXml(String url, String xml, Map<String, String> header, String certPassword, String certPath, String certType) throws Exception{
        HttpPost httpPost = new HttpPost(url);
        for(String key : header.keySet()){
            httpPost.setHeader(key, header.get(key));
        }
        httpPost.setHeader("Content-Type", "application/xml");
        httpPost.setEntity(new StringEntity(xml, "UTF-8"));
        CloseableHttpClient httpCline = this.initCert(certPassword, certPath, certType);
        CloseableHttpResponse httpResponse = httpCline.execute(httpPost);
        String content = null;
        if(httpResponse.getStatusLine().getStatusCode() == 200){
            content = EntityUtils.toString(httpResponse.getEntity(), "UTF-8");
        }else{
            content = "返回状态码:" + httpResponse.getStatusLine() + "。" + EntityUtils.toString(httpResponse.getEntity());
        }
        this.close(httpResponse);
        httpCline.close();
        return content;
    }
    /**
     * 初始化https对象(带证书)
     * @param key       证书密码
     * @param certPath  证书路径
     * @param certType  证书类型
     * @throws Exception
     */
    private CloseableHttpClient initCert(String key, String certPath, String certType) throws Exception {
        KeyStore keyStore = KeyStore.getInstance(certType);
        InputStream inputStream = new FileInputStream(new File(certPath));
        try {
            keyStore.load(inputStream, key.toCharArray());
        } finally {
            inputStream.close();
        }
        SSLContext sslcontext = SSLContexts.custom().loadKeyMaterial(keyStore, key.toCharArray()).build();
        SSLConnectionSocketFactory sslsf =
                new SSLConnectionSocketFactory(sslcontext, new String[] {"TLSv1"}, null,
                        SSLConnectionSocketFactory.BROWSER_COMPATIBLE_HOSTNAME_VERIFIER);
        return HttpClients.custom().setSSLSocketFactory(sslsf).build();
    }
    /**
     * 关闭资源
     */
    private void close(CloseableHttpResponse httpResponse){
        try {
            if(null != httpResponse){
                EntityUtils.consume(httpResponse.getEntity());//此处高能,通过源码分析,由EntityUtils是否回收HttpEntity
                httpResponse.close();
            }
        } catch (Exception e) {
            e.printStackTrace();
        }finally {
            try {
                if(null != httpResponse){
                    httpResponse.close();
                }
            }catch (Exception e){
                e.printStackTrace();
            }
        }
    }
}