文章目錄

• • • • • 一、客戶端實現
        • • 1. HttpsApiUtils +測試方法
          • 2. 返回報文監控
        • 二、服務端實現
        • • 2.1. 配置SSL 實現HTTPS
          • 2.2. 添加post接口方法
          • 2.3. 服務端監控
        • 三、進階測試
        • • 3.1. 客戶端發送對象
          • 3.2. 服務端監控
          • 3.3. 客戶端解析返回報文

一、客戶端實現

聲明：不用引入任何第三方jar包，只需要安裝JDK即可，目前版本適配1.6及以上版本

1. HttpsApiUtils +測試方法

package com.gblfy.util;import java.io.ByteArrayOutputStream; import java.io.DataOutputStream; import java.io.IOException; import java.io.InputStream; import java.net.URL; import java.security.KeyManagementException; import java.security.NoSuchAlgorithmException; import java.security.cert.CertificateException; import java.security.cert.X509Certificate;import javax.net.ssl.HostnameVerifier; import javax.net.ssl.HttpsURLConnection; import javax.net.ssl.SSLContext; import javax.net.ssl.SSLSession; import javax.net.ssl.TrustManager; import javax.net.ssl.X509TrustManager;/*** 實現HTTPS協議POST請求JSON報文** @author gblfy* @date 2020-06-19*/public class HttpsApiUtil {private static class TrustAnyTrustManager implements X509TrustManager {// 該方法檢查客戶端的證書，若不信任該證書則拋出異常。由于我們不需要對客戶端進行認證，因此我們只需要執行默認的信任管理器的這個方法。// JSSE中，默認的信任管理器類為TrustManager。@Overridepublic void checkClientTrusted(X509Certificate[] chain, String authType)throws CertificateException {}/** 該方法檢查服務器的證書，若不信任該證書同樣拋出異常。通過自己實現該方法，可以使之信任我們指定的任何證書。* 在實現該方法時，也可以簡單的不做任何處理， 即一個空的函數體，由于不會拋出異常，它就會信任任何證書。(non-Javadoc)*/@Overridepublic void checkServerTrusted(X509Certificate[] chain, String authType)throws CertificateException {}// 返回受信任的X509證書數組。@Overridepublic X509Certificate[] getAcceptedIssuers() {return new X509Certificate[]{};}}private static class TrustAnyHostnameVerifier implements HostnameVerifier {@Overridepublic boolean verify(String hostname, SSLSession session) {return true;}}/*** post方式請求服務器(https協議)** @param url 求地址* @param content 參數* @param charset 編碼* @return* @throws NoSuchAlgorithmException* @throws KeyManagementException* @throws IOException*/public static byte[] sendJsonToHttpsPost(String url, String content,String charset) throws NoSuchAlgorithmException,KeyManagementException, IOException {/** 類HttpsURLConnection似乎并沒有提供方法設置信任管理器。其實，* HttpsURLConnection通過SSLSocket來建立與HTTPS的安全連接* ，SSLSocket對象是由SSLSocketFactory生成的。* HttpsURLConnection提供了方法setSSLSocketFactory* (SSLSocketFactory)設置它使用的SSLSocketFactory對象。* SSLSocketFactory通過SSLContext對象來獲得，在初始化SSLContext對象時，可指定信任管理器對象。*/SSLContext sc = SSLContext.getInstance("SSL");sc.init(null, new TrustManager[]{new TrustAnyTrustManager()},new java.security.SecureRandom());URL console = new URL(url);HttpsURLConnection conn = (HttpsURLConnection) console.openConnection();conn.setSSLSocketFactory(sc.getSocketFactory());conn.setHostnameVerifier(new TrustAnyHostnameVerifier());conn.setDoOutput(true);// 設置請求頭conn.setRequestProperty("Content-Type", "application/json;charset=utf-8");conn.connect();DataOutputStream out = new DataOutputStream(conn.getOutputStream());out.write(content.getBytes(charset));// 刷新、關閉out.flush();out.close();InputStream is = conn.getInputStream();if (is != null) {ByteArrayOutputStream outStream = new ByteArrayOutputStream();byte[] buffer = new byte[1024];int len = 0;while ((len = is.read(buffer)) != -1) {outStream.write(buffer, 0, len);}is.close();return outStream.toByteArray();}return null;}public static void main(String[] args) throws NoSuchAlgorithmException, KeyManagementException, IOException {String url = "https://127.0.0.1:8888/postToJson";byte[] bytes = sendJsonToHttpsPost(url, "{\"name\":\"ly\"}", "utf-8");System.out.println("響應報文:"+new String(bytes));} }

2. 返回報文監控

解析

通過上述方式可以得到收發方法post()。傳入字符串，返回字節數組。

傳入的字符串處理：

JSONObject rspObj = new JSONObject(); rspObj.put("arg1", "aaa"); rspObj.put("arg2", "bbb"); //... String reqStr = rspObj.toString(); System.out.println("請求json:\n" + reqStr);

返回的字節數組轉字符串：

byte[] result = post(reqUrl,reqStr,"utf-8"); if(result != null){String rspStr = new String(result);System.out.println("響應json:\n" + rspStr); }

二、服務端實現

2.1. 配置SSL 實現HTTPS

Spring Boot 配置SSL 實現HTTPS

2.2. 添加post接口方法

package com.gblfy.controller;import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestBody; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.ResponseBody;@Controller @RequestMapping public class ViewControlller {@RequestMapping(value = "/postToJson", method = RequestMethod.POST, produces = "application/json;charset=UTF-8")@ResponseBodypublic String postToJson(@RequestBody String json) {System.out.println("https服務端接收到報文:" + json);return json;} }

2.3. 服務端監控

三、進階測試

3.1. 客戶端發送對象

package com.gblfy.pojo;import java.io.Serializable;public class User implements Serializable {private String username;private Integer age;private String passwd;public User(String username, Integer age, String passwd) {this.username = username;this.age = age;this.passwd = passwd;}public User() {}public String getUsername() {return username;}public void setUsername(String username) {this.username = username;}public Integer getAge() {return age;}public void setAge(Integer age) {this.age = age;}public String getPasswd() {return passwd;}public void setPasswd(String passwd) {this.passwd = passwd;} } public static void main(String[] args) throws NoSuchAlgorithmException, KeyManagementException, IOException, JSONException {//1. 模擬對象發送User user = new User();user.setUsername("gblfy");user.setAge(28);user.setPasswd("123456");//2. 配置發送urlString url = "https://127.0.0.1:8888/postToJson";//3.發送前將對象轉json處理JSONObject jsonObject = new JSONObject(user);String reqXml = jsonObject.toString();//4.向指定url發送json格式的https協議報文byte[] bytes = sendJsonToHttpsPost(url, reqXml, "utf-8");//5.對返回的報文解析String resXml = new String(bytes);JSONObject jsonObj = new JSONObject(resXml);//6.從解析的報文中獲取指定的值System.out.println("服務端返回報文:" + jsonObj.getString("username"));System.out.println("服務端返回報文:" + jsonObj.getInt("age"));System.out.println("服務端返回報文:" + jsonObj.getString("passwd"));}

3.2. 服務端監控

https服務端接收到報文:{"passwd":"123456","age":28,"username":"gblfy"}

3.3. 客戶端解析返回報文

服務端返回報文:gblfy 服務端返回報文:28 服務端返回報文:123456

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