在这里分享一份简单纯javaconfig的配置demo，仅有配置部分。就当是自我记录吧。

首先，文件结构

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WebInitializer 类似于web.xml 配置项目启动需要引入的一些配置。

public class WebInitializer extends AbstractAnnotationConfigDispatcherServletInitializer {

@Override
public void onStartup(ServletContext servletContext) throws ServletException {
    super.onStartup(servletContext);
}

@Override
protected Class<?>[] getRootConfigClasses() {
    //PropertiesConfig.class, DatabaseConfig.class打包在一起的时候需要调用，如果分布式，则只需要DubboConfig, SecurityConfig即可
    return new Class[]{DataSourceConfig.class, ShiroConfig.class};
}

@Override
protected Class<?>[] getServletConfigClasses() {
    return new Class[]{WebConfig.class};
}

@Override
protected String[] getServletMappings() {
    return new String[]{"/"};
}

//在这里设置的filter，全部都位于spring security filter 之后
@Override
protected Filter[] getServletFilters() {
    return null;
}}

DataSourceConfig 持久层配置，我使用的mybatis

@Configuration
@ComponentScan(basePackages = "code.tianmao.h5.service")
@EnableTransactionManagement
public class DataSourceConfig {

@Value("${jdbc.driver}")
private String driver;

@Value("${jdbc.url}")
private String url;


@Value("${jdbc.username}")
private String username;

@Value("${jdbc.password}")
private String password;

/**
 * 数据库连接配置
 *
 * @return PropertiesFactoryBean
 */
@Bean
public PropertiesFactoryBean databaseProperty() {
    PropertiesFactoryBean dbConfig = new PropertiesFactoryBean();
    dbConfig.setLocation(new ClassPathResource("db.properties"));
    return dbConfig;
}

@Bean
public PropertiesFactoryBean shiroProperty() {
    PropertiesFactoryBean dbConfig = new PropertiesFactoryBean();
    dbConfig.setLocation(new ClassPathResource("shiro.properties"));
    return dbConfig;
}


@Bean
public DruidDataSource druidDataSource() {
    DruidDataSource druidDataSource = new DruidDataSource();
    druidDataSource.setUrl(url);
    druidDataSource.setUsername(username);
    druidDataSource.setPassword(password);
    druidDataSource.setMaxActive(20);
    druidDataSource.setInitialSize(1);
    druidDataSource.setMaxWait(60000);
    druidDataSource.setMinIdle(1);
    druidDataSource.setTimeBetweenConnectErrorMillis(3000);
    druidDataSource.setMinEvictableIdleTimeMillis(300000);
    druidDataSource.setValidationQuery("SELECT 'x' FROM DUAL");
    druidDataSource.setTestWhileIdle(true);
    druidDataSource.setTestOnBorrow(false);
    druidDataSource.setTestOnReturn(false);
    return druidDataSource;
}

@Bean
public SqlSessionFactoryBean sqlSessionFactory() {
    SqlSessionFactoryBean sqlSessionFactoryBean = new SqlSessionFactoryBean();
    sqlSessionFactoryBean.setDataSource(druidDataSource());
    sqlSessionFactoryBean.setTypeAliasesPackage("code.tianmao.h5.domain");
    AuditingInterceptor auditingInterceptor = new AuditingInterceptor();
    PageHelper pageHelper = new PageHelper();
    Properties properties = new Properties();
    properties.put("dialect", "mysql");
    properties.put("offsetAsPageNum", true);
    properties.put("rowBoundsWithCount", true);
    properties.put("reasonable", true);
    pageHelper.setProperties(properties);
    Interceptor[] interceptor = {auditingInterceptor, pageHelper};
    sqlSessionFactoryBean.setPlugins(interceptor);
    org.apache.ibatis.session.Configuration configuration = new org.apache.ibatis.session.Configuration();
    configuration.setLogImpl(Log4j2Impl.class);
    sqlSessionFactoryBean.setConfiguration(configuration);
    return sqlSessionFactoryBean;
}

@Bean
public DataSourceTransactionManager transactionManager() {
    return new DataSourceTransactionManager(druidDataSource());
}


@Bean
public MapperScannerConfigurer mapperScannerConfigurer() {
    MapperScannerConfigurer mapperScannerConfigurer = new MapperScannerConfigurer();
    mapperScannerConfigurer.setBasePackage("code.tianmao.h5.dao,com.isea533.mybatis.mapper");
    mapperScannerConfigurer.setSqlSessionFactoryBeanName("sqlSessionFactory");
    Properties properties = new Properties();
    properties.put("mappers", "code.tianmao.h5.sysconfig.mybatis.mapper.ExpandMapper");
    mapperScannerConfigurer.setProperties(properties);
    return mapperScannerConfigurer ;
}}

ShiroConfig shiro配置，需要引入oAuth2 的按照这个模式配置就行

 @Configuration
 public class ShiroConfig {

@Bean
public AuthorizationAttributeSourceAdvisor authorizationAttributeSourceAdvisor() {
    AuthorizationAttributeSourceAdvisor authorizationAttributeSourceAdvisor = new AuthorizationAttributeSourceAdvisor();
    authorizationAttributeSourceAdvisor.setSecurityManager(defaultWebSecurityManager());
    return authorizationAttributeSourceAdvisor;
}

@Bean
public DefaultWebSecurityManager defaultWebSecurityManager() {
    DefaultWebSecurityManager defaultWebSecurityManager = new DefaultWebSecurityManager();
    defaultWebSecurityManager.setSessionManager(defaultWebSessionManager());
    defaultWebSecurityManager.setRememberMeManager(cookieRememberMeManager());
    return defaultWebSecurityManager;
}

@Bean
public ShiroFilterFactoryBean shiroFilterFactoryBean() {
    ShiroFilterFactoryBean shiroFilterFactoryBean = new ShiroFilterFactoryBean();
    shiroFilterFactoryBean.setSecurityManager(defaultWebSecurityManager());
    shiroFilterFactoryBean.setLoginUrl("/login");
    shiroFilterFactoryBean.setSuccessUrl("/first");
    shiroFilterFactoryBean.setUnauthorizedUrl("/refuse.jsp");
    Map filtersMap = new HashMap<>();
    filtersMap.put("authc",customFormAuthenticationFilter());
    shiroFilterFactoryBean.setFilters(filtersMap);

    Map chainMap = new LinkedHashMap<>();
    chainMap.put("/images/**","anon");
    chainMap.put("/js/**","anon");
    chainMap.put("/styles/**","anon");
    chainMap.put("/validatecode.jsp","anon");
    chainMap.put("/common/**","anon");
    chainMap.put("/logout.action","logout");
    chainMap.put("/index","user");
    chainMap.put("/first","user");
    chainMap.put("/welcome","user");
    chainMap.put("/**","authc");
    shiroFilterFactoryBean.setFilterChainDefinitionMap(chainMap);
    return shiroFilterFactoryBean;
}

/**
 * 自定义form认证过虑器
 * 基于Form表单的身份验证过滤器，不配置将也会注册此过虑器，表单中的用户账号、密码及loginurl将采用默认值，建议配置
 */
@Bean
public CustomFormAuthenticationFilter customFormAuthenticationFilter() {
    CustomFormAuthenticationFilter  customFormAuthenticationFilter = new CustomFormAuthenticationFilter();
    customFormAuthenticationFilter.setUsernameParam("username");
    customFormAuthenticationFilter.setPasswordParam("password");
    customFormAuthenticationFilter.setRememberMeParam("rememberMe");
    return customFormAuthenticationFilter;
}


/**
 * 凭证匹配器
 */
@Bean
public HashedCredentialsMatcher hashedCredentialsMatcher() {
    HashedCredentialsMatcher hashedCredentialsMatcher = new HashedCredentialsMatcher();
    hashedCredentialsMatcher.setHashAlgorithmName("md5"); //散列算法
    hashedCredentialsMatcher.setHashIterations(1); //散列次数
    return hashedCredentialsMatcher;
}


/**
 *
 * @return
 */
@Bean
public CustomRealm customRealm() {
    CustomRealm customRealm = new CustomRealm();
    customRealm.setCredentialsMatcher(hashedCredentialsMatcher());
    return customRealm;
}


@Bean
public SimpleCookie simpleCookie() {
    SimpleCookie simpleCookie = new SimpleCookie("rememberMe");
    simpleCookie.setMaxAge(2592000);
    return simpleCookie;
}

/**
 * rememberMeManager管理器，写cookie，取出cookie生成用户信息
 */
@Bean
public CookieRememberMeManager cookieRememberMeManager() {
    CookieRememberMeManager cookieRememberMeManager = new CookieRememberMeManager();
    cookieRememberMeManager.setCipherKey(Base64.decode("4AvVhmFLUs0KTA3Kprsdag=="));
    cookieRememberMeManager.setCookie(simpleCookie());
    return cookieRememberMeManager;
}

/**
 * 会话管理器
 */
@Bean
public DefaultWebSessionManager defaultWebSessionManager() {
    DefaultWebSessionManager defaultWebSessionManager = new DefaultWebSessionManager();
    defaultWebSessionManager.setGlobalSessionTimeout(600000);
    defaultWebSessionManager.setDeleteInvalidSessions(true);
    return defaultWebSessionManager;
}}

WebConfig springmvc的配置

 @Configuration
 @ComponentScan(basePackages = {"code.tianmao.h5.controller"})
 @EnableWebMvc
 @EnableAspectJAutoProxy(proxyTargetClass = true)
  public class WebConfig extends WebMvcConfigurerAdapter {

/**
 * jsp页面解析器配置
 *
 * @return ViewResolver
 */
@Bean
public ViewResolver jspViewResolver() {
    InternalResourceViewResolver viewResolver = new InternalResourceViewResolver();
    viewResolver.setOrder(100);
    viewResolver.setPrefix("/WEB-INF/jsp/");
    viewResolver.setSuffix(".jsp");
    return viewResolver;
}

@Bean
public CommonsMultipartResolver commonsMultipartResolver() {
    CommonsMultipartResolver commonsMultipartResolver = new CommonsMultipartResolver();
    commonsMultipartResolver.setMaxUploadSize(5242880);
    return commonsMultipartResolver;
}

@Bean
public LocalValidatorFactoryBean localValidatorFactoryBean() {
    LocalValidatorFactoryBean localValidatorFactoryBean = new LocalValidatorFactoryBean();
    localValidatorFactoryBean.setProviderClass(HibernateValidator.class);
    localValidatorFactoryBean.setValidationMessageSource(reloadableResourceBundleMessageSource());
    return localValidatorFactoryBean;
}

@Bean
public ReloadableResourceBundleMessageSource reloadableResourceBundleMessageSource() {
    ReloadableResourceBundleMessageSource reloadableResourceBundleMessageSource = new ReloadableResourceBundleMessageSource();
    reloadableResourceBundleMessageSource.setBasenames("classpath:CustomValidationMessages");
    Properties properties = new Properties();
    properties.put("fileEncodings", "utf-8");
    reloadableResourceBundleMessageSource.setFileEncodings(properties);
    reloadableResourceBundleMessageSource.setCacheSeconds(120);
    return reloadableResourceBundleMessageSource;
}

/**
 * 设置springdispatch默认名字为default
 */
@Override
public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) {
    configurer.enable();
}

/*
 * 消息转换器配置
 */
@Override
public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
    Charset charset = Charset.forName("UTF-8");

    MappingJackson2HttpMessageConverter jacksonConverter = new MappingJackson2HttpMessageConverter();
    ObjectMapper om = jacksonConverter.getObjectMapper();
    om.setDateFormat(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"));
    om.setLocale(Locale.CHINA);
    om.setTimeZone(TimeZone.getTimeZone("GMT+8"));

    List<MediaType> mediaTypeList = new ArrayList<>();
    mediaTypeList.add(new MediaType("text", "plain", charset));
    mediaTypeList.add(new MediaType("application", "json", charset));
    jacksonConverter.setSupportedMediaTypes(mediaTypeList);


    StringHttpMessageConverter stringConverter = new StringHttpMessageConverter(charset);
    stringConverter.setWriteAcceptCharset(false);

    //保持以下顺序
    converters.add(jacksonConverter);//"application/json" "application/*+json"
    converters.add(new Jaxb2RootElementHttpMessageConverter());//"application/xml" "text/xml" "application/*+xml"
    converters.add(new SourceHttpMessageConverter<>());//"application/xml" "text/xml" "application/*+xml"
    converters.add(new AllEncompassingFormHttpMessageConverter());//"application/x-www-form-urlencoded" "multipart/form-data"
    converters.add(new ByteArrayHttpMessageConverter());//"application/octet-stream" "*/*"
    converters.add(stringConverter);//"text/plain" "*/*"
    converters.add(new ResourceHttpMessageConverter());//"*/*"
}

@Override
public void addResourceHandlers(final ResourceHandlerRegistry registry) {
    registry.addResourceHandler("/images/**").addResourceLocations("/images/");
    registry.addResourceHandler("/js/**").addResourceLocations("/js/");
    registry.addResourceHandler("/styles/**").addResourceLocations("/styles/");
    registry.addResourceHandler("/WEB-INF/**").addResourceLocations("/WEB-INF/");
} }