Question

我创建了一个通过浏览器添加和删除学生数据的项目，用户必须在其中登录才能访问主页。我运行时，该项目未在浏览器上运行。有人可以帮助我运行项目吗？由于某些配置错误，我认为它是正确的。我提供了项目结构的屏幕快照和一些必要的文件以供参考。预先感谢。

SecurityWebApplicationInitializer：

package adil.java.schoolmaven.config;

import org.springframework.security.web.context.*;    

public class SecurityWebApplicationInitializer    
      extends AbstractSecurityWebApplicationInitializer {             
}

WebSecurityConfig.java：

package adil.java.schoolmaven.config;

import org.springframework.context.annotation.*;    
//import org.springframework.security.config.annotation.authentication.builders.*;    
import org.springframework.security.config.annotation.web.builders.HttpSecurity;    
import org.springframework.security.config.annotation.web.configuration.*;    
import org.springframework.security.core.userdetails.*;  
//import org.springframework.security.core.userdetails.UserDetailsService;    
import org.springframework.security.provisioning.InMemoryUserDetailsManager;  
import org.springframework.security.web.util.matcher.AntPathRequestMatcher;  
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;    
@EnableWebSecurity    
@ComponentScan("adil.java.schoolmaven")    
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {    

@Bean    
public UserDetailsService userDetailsService() {    
    InMemoryUserDetailsManager manager = new InMemoryUserDetailsManager();    
    manager.createUser(User.withDefaultPasswordEncoder()  
    .username("adil").password("123456").roles("ADMIN").build());    
    return manager;    
}    

@Override    
protected void configure(HttpSecurity http) throws Exception {    

      http.authorizeRequests().  
      antMatchers("/index", "/user","/").permitAll()  
      .antMatchers("/admin").authenticated()  
      .and()  
      .formLogin()  
      .loginPage("/login")  
      .and()  
      .logout()  
      .logoutRequestMatcher(new AntPathRequestMatcher("/logout"));  
}    
}

HomeController.java：

package adil.java.schoolmaven.controller;

import org.springframework.stereotype.Controller;    
import org.springframework.web.bind.annotation.RequestMapping;    
import org.springframework.web.bind.annotation.RequestMethod;    
@Controller    
public class HomeController {    

    @RequestMapping(value="/", method=RequestMethod.GET)    
    public String index() {    

        return "index";    
    }    
    @RequestMapping(value="/login", method=RequestMethod.GET)    
    public String login() {    

        return "login";    
    }    
    @RequestMapping(value="/admin", method=RequestMethod.GET)    
    public String admin() {    

        return "admin";    
    }    
}

StudentController.java：

package adil.java.schoolmaven.controller;

import java.io.File;
import java.io.IOException;
import java.util.List;
import javax.servlet.ServletContext;
import adil.java.schoolmaven.entity.Student;
import adil.java.schoolmaven.service.StudentService;
import java.nio.file.FileSystemException;
import javax.servlet.http.HttpServletRequest;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.lang.NonNull;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.servlet.ModelAndView;

@Controller
public class StudentController {

    @Autowired
    private ServletContext servletContext;

    // Constructor based Dependency Injection
    private StudentService studentService;

    public StudentController() {

    }

    @Autowired
    public StudentController(StudentService studentService) {
        this.studentService = studentService;
    }

    @RequestMapping(value = {"/", "/index"}, method = RequestMethod.GET)
    public ModelAndView hello() {
        ModelAndView mv = new ModelAndView();
        mv.setViewName("index");
        return mv;
    }

    // Get All Users
    @RequestMapping(value = "/allStudents", method = {RequestMethod.GET, RequestMethod.POST})

    public ModelAndView displayAllUser() {
        System.out.println("User Page Requested : All Students");
        ModelAndView mv = new ModelAndView();
        List<Student> studentList = studentService.getAllStudents();
        mv.addObject("studentList", studentList);
        mv.setViewName("allStudents");
        return mv;
    }

    @RequestMapping(value = "/addStudent", method = RequestMethod.GET)
    public ModelAndView displayNewUserForm() {
        ModelAndView mv = new ModelAndView("addStudent");
        mv.addObject("headerMessage", "Add Student Details");
        mv.addObject("student", new Student());
        return mv;
    }

    @PostMapping(value = "/addStudent")
    public String saveNewStudent(@RequestParam("name") @NonNull String name,
            @RequestParam("surname") @NonNull String surname,
            @RequestParam("avatar") MultipartFile file)
            throws IOException {

        Student student = new Student();
        student.setSurname(surname);
        student.setName(name);

        if (file != null && !file.isEmpty()) {
            student.setAvatar(studentService.saveAvatarImage(file).getName());
        }

        studentService.saveStudent(student);
        return "redirect:/allStudents";
    }

    @GetMapping(value = "/editStudent/{id}")
    public ModelAndView displayEditUserForm(@PathVariable Long id) {
        ModelAndView mv = new ModelAndView("editStudent");
        Student student = studentService.getStudentById(id);
        mv.addObject("headerMessage", "Редактирование студента");
        mv.addObject("student", student);
        return mv;
    }

    @PostMapping(value = "/editStudent")
    public String saveEditedUser(
            @RequestParam("id") Long id,
            @RequestParam("name") String name,
            @RequestParam("surname") String surname,
            @RequestParam("avatar") MultipartFile file) {

        try {

            studentService.updateStudent(name, surname, file, studentService.getStudentById(id));

        } catch (FileSystemException ex) {
            ex.printStackTrace();
        } catch (IOException e) {
            return "redirect:/error";
        }

        return "redirect:/allStudents";
    }

    @GetMapping(value = "/deleteStudent/{id}")
    public ModelAndView deleteUserById(@PathVariable Long id) {
        studentService.deleteStudentById(id);
        ModelAndView mv = new ModelAndView("redirect:/allStudents");

        return mv;

    }

}

WebMVCConfig.java：

package adil.java.schoolmaven.config;


import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.PropertySource;
import org.springframework.context.support.PropertySourcesPlaceholderConfigurer;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
import org.springframework.web.multipart.MultipartResolver;
import org.springframework.web.multipart.commons.CommonsMultipartResolver;
import org.springframework.web.servlet.ViewResolver;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
import org.springframework.web.servlet.view.InternalResourceViewResolver;

@Configuration
@EnableWebMvc
@EnableJpaRepositories
@ComponentScan(basePackages = "adil.java.schoolmaven")
@PropertySource("classpath:application.properties")
public class WebMvcConfig implements WebMvcConfigurer {

    @Value("${spring.servlet.multipart.max-file-size:1024}")

    private int maxUploadFileSize;

    @Bean

    public ViewResolver getViewResolver() {
        InternalResourceViewResolver resolver = new InternalResourceViewResolver();
        resolver.setPrefix("/WEB-INF/views/");
        resolver.setSuffix(".jsp");
        return resolver;
    }

    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        registry.addResourceHandler("/resources/**").addResourceLocations("/resources/css");
    }

    @Bean
    public MultipartResolver multipartResolver() {
        CommonsMultipartResolver resolver = new CommonsMultipartResolver();

        resolver.setMaxUploadSize(maxUploadFileSize * 1024);

        return resolver;
    }

    @Bean

    public static PropertySourcesPlaceholderConfigurer propertyConfigIn() {

        return new PropertySourcesPlaceholderConfigurer();

    }
}

    //@Override
    //public void configureViewResolvers(ViewResolverRegistry registry) {
    //  registry.jsp().prefix("/WEB-INF/views/").suffix(".jsp");
    //}
    // @Bean
    // public MessageSource messageSource() {
    // ResourceBundleMessageSource messageSource = new
    // ResourceBundleMessageSource();
    // messageSource.setBasename("messages");
    // return messageSource;
    // }



    /*@Override
    public void addViewControllers(ViewControllerRegistry registry) {
        registry.addViewController("/").setViewName("index");
    }*/

web.xml：

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
         xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
         id="WebApp_ID" version="3.0">

    <filter>
        <filter-name>encodingFilter</filter-name>
        <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
        <init-param>
            <param-name>encoding</param-name>
            <param-value>UTF-8</param-value>
        </init-param>
        <init-param>
            <param-name>forceEncoding</param-name>
            <param-value>true</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>encodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

    <error-page>

        <location>/errors</location>
    </error-page>


    <filter>
        <filter-name>sitemesh</filter-name>
        <filter-class>org.sitemesh.config.ConfigurableSiteMeshFilter</filter-class>
    </filter>
    <filter-mapping>
        <filter-name>sitemesh</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>


    <filter> 
        <filter-name>springSecurityFilterChain</filter-name> 
        <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class> 
    </filter> 
    <filter-mapping> 
        <filter-name>springSecurityFilterChain</filter-name> 
        <url-pattern>/*</url-pattern> 
    </filter-mapping>

</web-app>

Answer 1

您有两个具有相同值的请求映射。这是模棱两可的。

@RequestMapping(value="/", method=RequestMethod.GET)    
    public String index() {    

        return "index";    
    }  

@RequestMapping(value = {"/", "/index"}, method = RequestMethod.GET)
    public ModelAndView hello() {
        ModelAndView mv = new ModelAndView();
        mv.setViewName("index");
        return mv;
    }

“ /”映射到HomeController和StudentController中，这导致歧义。

该项目无法在Spring Security上运行

1 个答案: