1. 新建项目

引入web和security包

完整的pom.xml文件如下

<?xml version="1.0" encoding="UTF-8"?><project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://.example.springdemo.conf;import org.springframework.security.config.annotation.web.builders.HttpSecurity;import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;import org.springframework.security.core.Authentication;import org.springframework.security.core.AuthenticationException;import org.springframework.security.web.authentication.AuthenticationFailureHandler;import org.springframework.security.web.authentication.AuthenticationSuccessHandler;import javax.servlet.ServletException;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import java.io.IOException;import java.io.PrintWriter;@EnableWebSecuritypublic class WebSecurityConfig extends WebSecurityConfigurerAdapter { @Override protected void configure(HttpSecurity http) throws Exception { http.authorizeRequests() .anyRequest().authenticated() .and() .formLogin() //指定处理登录页面 .loginPage("/myLogin.html") //指定登录成功的处理逻辑 .successHandler(new AuthenticationSuccessHandler() { @Override public void onAuthenticationSuccess(HttpServletRequest request, HttpServletResponse response, Authentication authentication) throws IOException, ServletException { response.setContentType("application/json;charset=UTF-8"); PrintWriter writer = response.getWriter(); writer.write("{\"error_code\":\"0\",\"message\":\"欢迎登录\"}"); } }) //指定登录失败时的处理逻辑 .failureHandler(new AuthenticationFailureHandler() { @Override public void onAuthenticationFailure(HttpServletRequest request, HttpServletResponse response, AuthenticationException e) throws IOException, ServletException { response.setStatus(401); PrintWriter writer = response.getWriter(); writer.write("{\"error_code\":\"401\",\"name\":\"" + e.getClass() + "\",\"message\":\"" + e.getMessage() + "\"}"); } }) .permitAll() .and() .csrf().disable(); }}

4. 运行结果

当输入密码错误时

当输入密码正确时

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。