spring - 使用 Spring Java Config 时资源不可用 Tomcat 404 错误

Question

我得到了

"The requested resource (/SpringSecurity/welcome) is not available."

使用 Spring Java Config 时

SpringInitializer.java

package com.security.config;
import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;

public class SpringInitializer extends
    AbstractAnnotationConfigDispatcherServletInitializer {

@Override
protected Class<?>[] getRootConfigClasses() {
    // TODO Auto-generated method stub
    return new Class[] { AppConfig.class };
}

@Override
protected Class<?>[] getServletConfigClasses() {
    // TODO Auto-generated method stub
    return null;
}

@Override
protected String[] getServletMappings() {
    // TODO Auto-generated method stub
    return new String[] { "/" };
}
}

AppConfig.java

package com.security.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Import;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.view.InternalResourceViewResolver;
import org.springframework.web.servlet.view.JstlView;

@EnableWebMvc
@Configuration
@ComponentScan({ "com.security" })
@Import({ SecurityConfig.class })
public class AppConfig {
  @Bean
  public InternalResourceViewResolver viewResolver() {
    InternalResourceViewResolver viewResolver = new InternalResourceViewResolver();
    viewResolver.setViewClass(JstlView.class);
    viewResolver.setPrefix("/WEB-INF/jsp/");
    viewResolver.setSuffix(".jsp");
    return viewResolver;
  }
}

带有映射的 HelloController 类

package com.security.controller;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;

@Controller
public class HelloController {

@RequestMapping(value = { "/", "/welcome**" }, method = RequestMethod.GET)
public ModelAndView welcomePage() {
    ModelAndView model = new ModelAndView();
    model.addObject("title", "Spring Security Hello World");
    model.addObject("message", "This is welcome page!");
    model.setViewName("hello");
    return model;

}
}

1. 我的 JSP 文件位于“/WEB-INF/jsp/”
2. 我在控制台中没有收到任何错误
3. 我正在使用 Tomcat 7

当我检查我的控制台时，我看到了

INFO: Mapped "{[/ || /welcome**],methods=[GET],params=[],headers=[],consumes=[],produces=[],custom=[]}" onto public org.springframework.web.servlet.ModelAndView com.security.controller.HelloController.welcomePage()

所以映射似乎已经完成了。但是当我尝试使用 url 访问时，我的 tomcat 服务器仍然显示 404 错误:http://localhost:8081/SpringSecurity/welcome

我还尝试了“清理 Tomcat 工作目录”。但我不知道问题所在。

Answer 1

404 错误是因为您触发的 url 不存在或未映射。所以请检查您所做的 dispatcherservlet 配置。它是否映射到/SpringSecurity。并尝试在 Controller 中单独提供/welcome 而不是 **。