Spring Tool Suite 4.6.1
Maven 3.6.3
JSEncrypt 2.3.1
概述前端 JavaScript 使用 RSA 的公钥加密，后端 Java 使用私钥进行解密。
pom.xml <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 "> <modelVersion>4.0.0</modelVersion> <groupId>jiangbo.springmvc</groupId> <artifactId>spring-mvc-rsa</artifactId> <version>1.0.0</version> <packaging>war</packaging> <description>RSA：javascript 加密，java 解密</description> <properties> <maven.compiler.source>1.8</maven.compiler.source> <maven.compiler.target>1.8</maven.compiler.target> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> </properties> <dependencyManagement> <dependencies> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-framework-bom</artifactId> <version>4.3.24.RELEASE</version> <type>pom</type> <scope>import</scope> </dependency> </dependencies> </dependencyManagement> <dependencies> <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <version>3.1.0</version> <scope>provided</scope> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> </dependency> </dependencies> <build> <plugins> <plugin> <artifactId>maven-war-plugin</artifactId> <version>3.1.0</version> </plugin> </plugins> </build> </project> RootConfiguration package jiangbo.springmvc; import org.springframework.context.annotation.ComponentScan; import org.springframework.context.annotation.Configuration; import org.springframework.web.servlet.config.annotation.EnableWebMvc; import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry; import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter; @Configuration @ComponentScan @EnableWebMvc public class RootConfiguration extends WebMvcConfigurerAdapter { @Override public void addResourceHandlers(ResourceHandlerRegistry registry) { registry.addResourceHandler("/**").addResourceLocations("http://www.likecs.com/"); } } JiangBoDispatcherServletInitializer package jiangbo.springmvc; import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer; public class JiangBoDispatcherServletInitializer extends AbstractAnnotationConfigDispatcherServletInitializer { @Override protected Class<?>[] getRootConfigClasses() { return null; } @Override protected Class<?>[] getServletConfigClasses() { return new Class<?>[] { RootConfiguration.class }; } @Override protected String[] getServletMappings() { return new String[] { "http://www.likecs.com/" }; } } WelcomeController package jiangbo.springmvc.controller; import java.security.GeneralSecurityException; import java.security.KeyFactory; import java.security.spec.PKCS8EncodedKeySpec; import java.util.Base64; import javax.crypto.Cipher; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.PostMapping; import org.springframework.web.bind.annotation.ResponseBody; @Controller public class WelcomeController { private static final String PRIVATE_KEY = "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"; @PostMapping(value = "decrypt", produces = "text/plain;charset=UTF-8") @ResponseBody public String decrypt(String text) throws GeneralSecurityException { System.out.println("加密后：" + text); String pwd = decrypt(text, PRIVATE_KEY); return "服务器返回：" + pwd; } static String decrypt(String data, String privateKey) throws GeneralSecurityException { PKCS8EncodedKeySpec keySpec = new PKCS8EncodedKeySpec(base64Decode(privateKey)); KeyFactory keyFactory = KeyFactory.getInstance("RSA"); Cipher cipher = Cipher.getInstance("RSA/ECB/PKCS1Padding"); cipher.init(Cipher.DECRYPT_MODE, keyFactory.generatePrivate(keySpec)); return new String(cipher.doFinal(base64Decode(data))); } static byte[] base64Decode(String str) { return Base64.getDecoder().decode(str); } } index.html <!DOCTYPE html> <html lang="zh"> <head> <meta charset="UTF-8" /> <meta content="width=device-width, initial-scale=1.0" /> <script src="http://cdn.bootcdn.net/ajax/libs/jsencrypt/2.3.1/jsencrypt.js"></script> <title>加解密</title> </head> <body> <input type="text"> <input type="button" value="发送"><br> <span></span> <script type="text/javascript"> let publicKey = "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAufbeqTZVe3DOgmPY76zQsYD+HLiayX4JQsHb0MHov85h9kOIc3WLEk5YIwjhm5tfASrs2YvsCrVlYPQqp8ByWtauxyge5zb/ZMKDhP5yweXN+9ABQvsLZIHb5mwqpCKrikf2M8qOUNmtviUwjjuuFYvsAKz1FAnPOl1qIQKVfioNUsrYtHU0Ole+kf3DZqhjkSn98r/nrOosFD3GEr3wfN0iuYhwlK2yjr+6xOQqBWE4lul+d00c9xknyFttjXYUIJvbygORY4pVz9HIGJUVBCPWaG+rpy4SMp4cYlNXxBD4VZJ9p8E5wPpvU7+3C9qGSICqePHkwgnr4lhQlIPeOwIDAQAB"; let RSAEncrypt = new JSEncrypt(); RSAEncrypt.setPublicKey(publicKey); document.getElementById("send").onclick = function () { let text = document.getElementById("text").value; console.log("原始内容" + text); let encryptedPass = RSAEncrypt.encrypt(text); console.log("加密内容" + encryptedPass); send(encryptedPass); } /** * 发送请求 * * */ function send(text) { httpRequest = new XMLHttpRequest(); httpRequest.onreadystatechange = function (result) { if (httpRequest.readyState === XMLHttpRequest.DONE) { document.getElementsByTagName("span")[0].textContent = httpRequest.responseText; } }; httpRequest.open(\'POST\', \'decrypt\'); httpRequest.setRequestHeader(\'Content-Type\', \'application/x-www-form-urlencoded\'); httpRequest.send("text=" + encodeURIComponent(text)); } </script> </body> </html> 浏览器显示