有的新手彥祖在搬磚過程中會(huì)遇到調(diào)用別人接口來獲取數(shù)據(jù)的需求，這其中涉及調(diào)用一些相關(guān)類及方法的調(diào)用，最近干活又要用這個(gè)了，把以前的代碼搬出來套用下，死活報(bào)錯(cuò)協(xié)議加密證書啥的問題，真想感嘆卑微打工仔掙點(diǎn)錢養(yǎng)家糊口不容易。無所謂，我?guī)煾禃?huì)出手，過來一眼就看出我的問題，我用的http協(xié)議寫的，人家接口測(cè)試環(huán)境是https協(xié)議寫的，https協(xié)議有加密方式，去參照大佬的寫法封裝整理了兩個(gè)類。開發(fā)差不多完成后在這記錄分享下，不多bb直接上源碼了。

package com.inspur.dehongtf.controller.http_data_get;

import com.alibaba.fastjson.JSONObject;
import org.apache.http.conn.ssl.NoopHostnameVerifier;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.ssl.SSLContextBuilder;
import org.apache.http.ssl.TrustStrategy;
import org.springframework.http.HttpEntity;
import org.springframework.http.HttpHeaders;
import org.springframework.http.MediaType;
import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
import org.springframework.web.client.RestTemplate;

import javax.net.ssl.SSLContext;
import java.security.KeyManagementException;
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import java.util.Arrays;
import java.util.Map;

public class httpsRequest {

    public JSONObject send2(String url, Map<String, Object> params) {
           HttpHeaders headers = new HttpHeaders();
           headers.setContentType(MediaType.APPLICATION_JSON);
           headers.setAccept(Arrays.asList(MediaType.ALL));
           HttpEntity<Object> entity = new HttpEntity<>(JSONObject.toJSONString(params), headers);
           try {
                String body = getRestTemplate().postForObject(url, entity, String.class);
                return JSONObject.parseObject(body);
              }

           catch (Exception e) {
                e.printStackTrace();
                               }
           return null;
    }

    public static RestTemplate getRestTemplate() throws KeyStoreException, NoSuchAlgorithmException, KeyManagementException {
               SSLContext sslContext = new SSLContextBuilder().loadTrustMaterial(null, new TrustStrategy() {
               @Override
               public boolean isTrusted(X509Certificate[] arg0, String arg1) throws CertificateException { return true;
               }
        }).build();

        SSLConnectionSocketFactory csf = new SSLConnectionSocketFactory(sslContext,
                new String[]{"TLSv1"},
                null,
                NoopHostnameVerifier.INSTANCE);

        CloseableHttpClient httpClient = HttpClients.custom()
                .setSSLSocketFactory(csf)
                .build();

        HttpComponentsClientHttpRequestFactory requestFactory =
                new HttpComponentsClientHttpRequestFactory();

        requestFactory.setHttpClient(httpClient);
        RestTemplate restTemplate = new RestTemplate(requestFactory);
        return restTemplate;
    }
}

以上是一個(gè)自己再次封裝的用于調(diào)用https協(xié)議的類，send2方法調(diào)用了getRestTemplate方法，在測(cè)試類中調(diào)用時(shí)傳入兩個(gè)參數(shù)，其一是String類型的url，其二是指定泛型的map集合，也就是post的請(qǐng)求參數(shù)，對(duì)了，這個(gè)方法目前只適用于post方法。

如果有彥祖在看，順便給彥祖?zhèn)儨y(cè)試下

這里定義并書寫了參數(shù)和url，實(shí)例化上面的httpsRequest類，傳入url和請(qǐng)求參數(shù)調(diào)用send2方法，得到的結(jié)果就是在url接口指定參數(shù)下的數(shù)據(jù)，下面輸出看一下

在控制層調(diào)用上面類的getParams方法，得到返回?cái)?shù)據(jù)，啟動(dòng)工程，postman調(diào)用自己的接口，輸出看一下數(shù)據(jù)，沒問題。

這里我也寫了一個(gè)http的類，但是好像https這個(gè)類能共用http與https，深層原理咱也不知道，http類如下，難免以后找不到了，又被同事說：多刪幾個(gè)妹子，不要?jiǎng)h代碼。文章來源地址http://www.zghlxwxcb.cn/news/detail-535799.html

package com.inspur.dehongtf.controller.http_data_get;

import com.alibaba.fastjson.JSONObject;
import org.springframework.http.HttpEntity;
import org.springframework.http.HttpHeaders;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.web.client.RestTemplate;

import java.util.Map;

public class httpRequest {
    public JSONObject send1(String url, Map<String, Object> params) {
        HttpHeaders headers = new HttpHeaders();
        headers.setContentType(MediaType.APPLICATION_JSON_UTF8);
        RestTemplate restTemplate = new RestTemplate();
        JSONObject obj = new JSONObject(params);
        String s = obj.toString();
        HttpEntity request = new HttpEntity(s, headers);
        ResponseEntity<String> responseEntity = restTemplate.postForEntity(url, request, String.class, new Object[0]);
        JSONObject responseData = JSONObject.parseObject((String)responseEntity.getBody());
        return responseData;
}

}