Convert Spring Security XML Config to java class

Good day. I have an XML configuration for Spring Security. Please tell me how to translate it from XML to java class.

<?xml version="1.0" encoding="UTF-8"?> <beans:beans xmlns="http://www.springframework.org/schema/security" xmlns:beans="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security.xsd"> <http auto-config="true"> <intercept-url pattern="/" access="hasRole('ROLE_USER')"/> <intercept-url pattern="/welcome" access="hasRole('ROLE_USER')"/> <form-login login-page="/login" default-target-url="/welcome" authentication-failure-url="/login?error" username-parameter="username" password-parameter="password"/> <logout logout-success-url="/login?logout" /> </http> <authentication-manager alias="authenticationManager"> <authentication-provider user-service-ref="userDetailsServiceImpl"> <password-encoder ref="encoder"></password-encoder> </authentication-provider> </authentication-manager> <beans:bean id="userDetailsServiceImpl" class="com.hellokoding.account.service.UserDetailsServiceImpl"></beans:bean> <beans:bean id="encoder" class="org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder"> <beans:constructor-arg name="strength" value="11"/> </beans:bean> 

Thank.

I translated :

 @Configuration @EnableWebSecurity @EnableGlobalMethodSecurity(securedEnabled = true) public class AppSecurityConfig extends WebSecurityConfigurerAdapter { @Autowired private DataSource dataSource; @Autowired public void configAuthentication(AuthenticationManagerBuilder auth) throws Exception { auth. jdbcAuthentication().dataSource(dataSource) .usersByUsernameQuery( "select username,password, enabled from users where username=?") .authoritiesByUsernameQuery( "select username, role from user_roles where username=?"); } @Autowired protected void registerGlobalAuthentication(AuthenticationManagerBuilder registry) throws Exception { registry .userDetailsService(getUserDetailsService()) .passwordEncoder(gatPasswordEncoder()); } @Bean public PlaintextPasswordEncoder gatPasswordEncoder() { return new PlaintextPasswordEncoder(); } @Bean public UserDetailsService getUserDetailsService() { return new UserDetailsServiceImpl(); } @Override protected void configure(HttpSecurity http) throws Exception { http.authorizeRequests() .antMatchers("/").permitAll() .antMatchers("/admin/**").access("hasRole('admin')") .antMatchers("/db/**").access("hasRole('ADMIN') and hasRole('DBA')") .anyRequest().authenticated() .and() .formLogin() .loginPage("/login") .defaultSuccessUrl("/welcome", false) .and() .logout() .logoutUrl("/logout") .logoutSuccessUrl("/"); } 

}

The server starts, but crashes 500 error:

 HTTP Status 500 - Servlet.init() for servlet dispatcher threw exception javax.servlet.ServletException: Servlet.init() for servlet dispatcher threw exception org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:474) org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79) org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:624) org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:349) org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:783) org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:798) org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1434) org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) java.lang.Thread.run(Thread.java:745) org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'securityServiceImpl': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private org.springframework.security.authentication.AuthenticationManager ru.ks_on_v.service.SecurityServiceImpl.authenticationManager; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [org.springframework.security.authentication.AuthenticationManager] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)} org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:292) org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1185) org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537) org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475) org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:302) org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228) org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:298) org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193) org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:703) org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:760) org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:482) org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:658) org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:530) org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:484) org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:136) javax.servlet.GenericServlet.init(GenericServlet.java:158) org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:474) org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79) org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:624) org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:349) org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:783) org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:798) org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1434) org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) java.lang.Thread.run(Thread.java:745)