Java使用bcrypt实现对密码加密效果详解

< dependency >

     < groupId >org.mindrot</ groupId >

     < artifactId >jbcrypt</ artifactId >

     < version >0.4</ version >

</ dependency >

<? xml version = "1.0" encoding = "UTF-8" ?>

< project xmlns = "http://maven.apache.org/POM/4.0.0" xmlns:xsi = "http://HdhCmsTestw3.org/2001/XMLSchema-instance"

          xsi:schemaLocation = "http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd" >

     < modelVersion >4.0.0</ modelVersion >

     < parent >

         < groupId >org.springframework.boot</ groupId >

         < artifactId >spring-boot-starter-parent</ artifactId >

         < version >2.3.0.RELEASE</ version >

         < relativePath /> <!-- lookup parent from repository -->

     </ parent >

     < groupId >com.example</ groupId >

     < artifactId >demo_SpringBoot</ artifactId >

     < version >0.0.1-SNAPSHOT</ version >

     < name >demo_SpringBoot</ name >

     < description >Demo project for Spring Boot</ description >

     < properties >

         < java.version >1.8</ java.version >

     </ properties >

     < dependencies >

         < dependency >

             < groupId >org.springframework.boot</ groupId >

             < artifactId >spring-boot-starter-web</ artifactId >

         </ dependency >

         < dependency >

             < groupId >org.mindrot</ groupId >

             < artifactId >jbcrypt</ artifactId >

             < version >0.4</ version >

         </ dependency >

     </ dependencies >

     < build >

         < plugins >

             < plugin >

                 < groupId >org.springframework.boot</ groupId >

                 < artifactId >spring-boot-maven-plugin</ artifactId >

                 < version >2.3.0.RELEASE</ version >

             </ plugin >

         </ plugins >

     </ build >

</ project >

package com.example.controller;

import org.mindrot.jbcrypt.BCrypt;

import org.springframework.web.bind.annotation.GetMapping;

import org.springframework.web.bind.annotation.RestController;

@RestController

public class HelloController {

     @GetMapping ( "/test" )

     public String test() {

         String password = "123456" ;

         // 加密

         String encodedPassword = BCrypt.hashpw(password, BCrypt.gensalt());

         System.out.println(encodedPassword);

         // 使用正确密码验证密码是否正确

         boolean flag = BCrypt.checkpw(password, encodedPassword);

         System.out.println(flag);

         // 使用错误密码验证密码是否正确

         flag = BCrypt.checkpw( "111222" , encodedPassword);

         System.out.println(flag);

         System.out.println( "-------------------------------------------" );

         return "test success" ;

     }

}