Halo源码分析登录部分

源码分析登录部分"/>

Halo源码分析登录部分

源码解析四步走

• 了解项目是干嘛用的，涉及到哪些知识点

• 把项目跑起来

• 阅读源码并进行调试，把组件弄熟，看日志，打印变量

  浏览顺序参照：controller—service—respository—model

• 加入自己的功能和想法，实现

Halo

配置文件解析

build.gradle

plugins {id 'org.springframework.boot' version '2.2.2.RELEASE'id "io.freefair.lombok" version "3.6.6"
//    id 'war'id 'java'
}apply plugin: 'io.spring.dependency-management'group = 'run.halo.app'
archivesBaseName = 'halo'
version = '1.2.0'
sourceCompatibility = '1.8'
description = 'Halo, personal blog system developed in Java.'repositories {maven {url ''}mavenCentral()jcenter()
}configurations {implementation {exclude module: 'spring-boot-starter-tomcat'exclude module: 'slf4j-log4j12'}developmentOnlyruntimeClasspath {extendsFrom developmentOnly}
}bootJar {manifest {attributes('Implementation-Title': 'Halo Application','Implementation-Version': version)}
}ext {ohMyEmailVersion = '0.0.4'hutoolVersion = '5.0.3'upyunSdkVersion = '4.0.1'qiniuSdkVersion = '7.2.18'aliyunSdkVersion = '3.4.2'baiduSdkVersion = '0.10.36'qcloudSdkVersion = '5.5.7'swaggerVersion = '2.9.2'commonsLangVersion = '3.8.1'httpclientVersion = '4.5.7'dataformatYamlVersion = '2.9.2'jgitVersion = '5.3.0.201903130848-r'flexmarkVersion = '0.42.12'thumbnailatorVersion = '0.4.8'image4jVersion = '0.7zensight1'flywayVersion = '6.1.0'h2Version = '1.4.196'levelDbVersion = '0.12'jsonVersion = '20190722'fastJsonVersion = '1.2.56'templateInheritance = "0.4.RELEASE"
}dependencies {implementation 'org.springframework.boot:spring-boot-starter-actuator'implementation 'org.springframework.boot:spring-boot-starter-data-jpa'implementation 'org.springframework.boot:spring-boot-starter-web'implementation 'org.springframework.boot:spring-boot-starter-undertow'implementation 'org.springframework.boot:spring-boot-starter-freemarker'implementation "kr.pe.kwonnam.freemarker:freemarker-template-inheritance:$templateInheritance"implementation "io.github.biezhi:oh-my-email:$ohMyEmailVersion"implementation "cn.hutool:hutool-core:$hutoolVersion"implementation "cn.hutool:hutool-crypto:$hutoolVersion"implementation "cn.hutool:hutool-extra:$hutoolVersion"implementation "com.upyun:java-sdk:$upyunSdkVersion"implementation "com.qiniu:qiniu-java-sdk:$qiniuSdkVersion"implementation "com.aliyun.oss:aliyun-sdk-oss:$aliyunSdkVersion"implementation "com.baidubce:bce-java-sdk:$baiduSdkVersion"implementation "com.qcloud:cos_api:$qcloudSdkVersion"implementation "io.springfox:springfox-swagger2:$swaggerVersion"implementation "io.springfox:springfox-swagger-ui:$swaggerVersion"implementation "org.apachemons:commons-lang3:$commonsLangVersion"implementation "org.apache.httpcomponents:httpclient:$httpclientVersion"implementation "com.fasterxml.jackson.dataformat:jackson-dataformat-yaml:$dataformatYamlVersion"implementation "org.eclipse.jgit:org.eclipse.jgit:$jgitVersion"implementation "com.vladsch.flexmark:flexmark:$flexmarkVersion"implementation "com.vladsch.flexmark:flexmark-ext-attributes:$flexmarkVersion"implementation "com.vladsch.flexmark:flexmark-ext-autolink:$flexmarkVersion"implementation "com.vladsch.flexmark:flexmark-ext-emoji:$flexmarkVersion"implementation "com.vladsch.flexmark:flexmark-ext-escaped-character:$flexmarkVersion"implementation "com.vladsch.flexmark:flexmark-ext-gfm-strikethrough:$flexmarkVersion"implementation "com.vladsch.flexmark:flexmark-ext-gfm-tasklist:$flexmarkVersion"implementation "com.vladsch.flexmark:flexmark-ext-ins:$flexmarkVersion"implementation "com.vladsch.flexmark:flexmark-ext-media-tags:$flexmarkVersion"implementation "com.vladsch.flexmark:flexmark-ext-tables:$flexmarkVersion"implementation "com.vladsch.flexmark:flexmark-ext-toc:$flexmarkVersion"implementation "com.vladsch.flexmark:flexmark-ext-yaml-front-matter:$flexmarkVersion"implementation "com.vladsch.flexmark:flexmark-ext-gitlab:$flexmarkVersion"implementation "com.vladsch.flexmark:flexmark-html-parser:$flexmarkVersion"implementation "net.coobird:thumbnailator:$thumbnailatorVersion"implementation "net.sf.image4j:image4j:$image4jVersion"implementation "org.flywaydb:flyway-core:$flywayVersion"implementation "org.json:json:$jsonVersion"implementation "com.alibaba:fastjson:$fastJsonVersion"implementation "org.iq80.leveldb:leveldb:$levelDbVersion"runtimeOnly "com.h2database:h2:$h2Version"runtimeOnly 'mysql:mysql-connector-java'compileOnly 'org.projectlombok:lombok'annotationProcessor 'org.projectlombok:lombok'testImplementation 'org.springframework.boot:spring-boot-starter-test'developmentOnly 'org.springframework.boot:spring-boot-devtools'
}

都是halo的项目管理的文件，一些依赖
看项目涉及哪些知识点，直奔build.gradle

Idea中快捷键的用法

F9 resume programe 恢复程序
Alt+F10 show execution point 显示执行断点
F8 Step Over 相当于eclipse的f6 跳到下一步
F7 Step Into 相当于eclipse的f5就是 进入到代码
Alt+shift+F7 Force Step Into 这个是强制进入代码
Shift+F8 Step Out 相当于eclipse的f8跳到下一个断点，也相当于eclipse的f7跳出函数
Atl+F9 Run To Cursor 运行到光标处
ctrl+shift+F9 debug运行java类
ctrl+shift+F10 正常运行java类
alt+F8 debug时选中查看值

有关Halo后台登陆模块的调试

 @Overridepublic AuthToken authenticate(LoginParam loginParam) {Assert.notNull(loginParam, "Login param must not be null");String username = loginParam.getUsername();String mismatchTip = "用户名或者密码不正确";final User user;try {// Get user by username or email//isEmail检验是否为可用邮箱，是返回true执行按邮箱查找用户，否则返回false执行按用户名查找user = Validator.isEmail(username) ?userService.getByEmailOfNonNull(username) : userService.getByUsernameOfNonNull(username);} catch (NotFoundException e) {log.error("Failed to find user by name: " + username, e);eventPublisher.publishEvent(new LogEvent(this, loginParam.getUsername(), LogType.LOGIN_FAILED, loginParam.getUsername()));throw new BadRequestException(mismatchTip);}//判断是否账号停用userService.mustNotExpire(user);//判断密码是否匹配if (!userService.passwordMatch(user, loginParam.getPassword())) {// If the password is mismatcheventPublisher.publishEvent(new LogEvent(this, loginParam.getUsername(), LogType.LOGIN_FAILED, loginParam.getUsername()));throw new BadRequestException(mismatchTip);}if (SecurityContextHolder.getContext().isAuthenticated()) {// If the user has been logged inthrow new BadRequestException("您已登录，请不要重复登录");}// Log it then login successfuleventPublisher.publishEvent(new LogEvent(this, user.getUsername(), LogType.LOGGED_IN, user.getNickname()));// Generate new tokenreturn buildAuthToken(user);}

三元运算符：
如名字表示的三元运算符需要三个操作数。
语法为：条件表达式？表达式1：表达式2。
说明：问号前面的位置是判断的条件，判断结果为bool型，为true时调用表达式1，为false时调用表达式2。
其逻辑为：“如果条件表达式成立或者满足则执行表达式1，否则执行第二个。”常用在设置默认值,例如某个值不一定存在,则判断这个值是否存在,不存在给默认值(表达式2)。
简述:？前面判断，true执行表达式1，false执行表达式2

用户表信息：

    @NonNullprivate AuthToken buildAuthToken(@NonNull User user) {Assert.notNull(user, "User must not be null");// Generate new tokenAuthToken token = new AuthToken();//令牌添加随机IDtoken.setAccessToken(HaloUtils.randomUUIDWithoutDash());//设置令牌过期时长，这个是写死的token.setExpiredIn(ACCESS_TOKEN_EXPIRED_SECONDS);token.setRefreshToken(HaloUtils.randomUUIDWithoutDash());// Cache those tokens, just for clearingcacheStore.putAny(SecurityUtils.buildAccessTokenKey(user), token.getAccessToken(), ACCESS_TOKEN_EXPIRED_SECONDS, TimeUnit.SECONDS);cacheStore.putAny(SecurityUtils.buildRefreshTokenKey(user), token.getRefreshToken(), REFRESH_TOKEN_EXPIRED_DAYS, TimeUnit.DAYS);// Cache those tokens with user idcacheStore.putAny(SecurityUtils.buildTokenAccessKey(token.getAccessToken()), user.getId(), ACCESS_TOKEN_EXPIRED_SECONDS, TimeUnit.SECONDS);cacheStore.putAny(SecurityUtils.buildTokenRefreshKey(token.getRefreshToken()), user.getId(), REFRESH_TOKEN_EXPIRED_DAYS, TimeUnit.DAYS);return token;}

返回一个令牌实体

security中大都是跟登录模块相关的