Question

我正在从一本名为“Spring in Action”的书中学习Spring MVC。然而。当我点击正确的控制器时，我收到404错误。我使用注释而不是xml配置，因此很难从网上找到。你可以看到我正在使用的非常简单的类和配置

SpittrWebInitializer.java

package spittr.config;

import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;

public class SpittrWebAppInitializer extends AbstractAnnotationConfigDispatcherServletInitializer {
    @Override
    protected Class<?>[] getRootConfigClasses() {
        return new Class<?>[] {RootConfig.class};
    }

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

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

RootConfig.java

package spittr.config;

import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.FilterType;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;

@Configuration
@ComponentScan(basePackages = "spittr",
                excludeFilters = @ComponentScan.Filter(type = FilterType.ANNOTATION,
                                                        value = EnableWebMvc.class))
public class RootConfig {
}

WebConfig.java

package spittr.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.ViewResolver;
import org.springframework.web.servlet.config.annotation.DefaultServletHandlerConfigurer;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
import org.springframework.web.servlet.view.InternalResourceViewResolver;

@Configuration
@EnableWebMvc
@ComponentScan(basePackages = {"spittr.web"})
public class WebConfig extends WebMvcConfigurerAdapter {

    @Bean
    public ViewResolver viewResolver() {
        InternalResourceViewResolver resolver = new InternalResourceViewResolver();
        resolver.setPrefix("/WEB-INF/views/");
        resolver.setSuffix(".jsp");
        resolver.setExposeContextBeansAsAttributes(true);
        return resolver;
    }

    @Override
    public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) {
        configurer.enable();
    }
}

HomeController.java

package spittr.web;

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 = "/home", method = RequestMethod.GET)
    private String home() {
        return "home";
    }
}

最后在resources/WEB-INF/views/包下我有一个名为home.jsp的jsp，就像是;

<html>
<body>
<h1>Spring 4.0.2 MVC web service</h1>

<h3>Welcome!!!</h3>
</body>
</html>

可以击中控制器，所以我知道它们已经初始化而没有任何问题，但是，上下文无法找到合适的jsp。我感谢您的帮助。感谢

Answer 1

JSP位置不正确WEB-INF位置在src / main / webapp下不在资源

下

Spring MVC在WEB-INF / views / package中找不到合适的jsp

1 个答案: