java - Spring MVC 无法解析 .jsp 文件

Question

我正在尝试构建 RESTful Web 服务。我按照 spring.io 的说明进行操作，并使“hello 项目”(localhost:8080/greeting) 正常工作。PS:我使用的是Maven项目。该项目已经发布在Github上:https://github.com/Tommzy/OutlierDemo/

但是，当我试图让 spring mvc 解析我的 View 之一(.jsp)时。据说

Whitelabel Error Page

This application has no explicit mapping for /error, so you are seeing this as a fallback.

Wed Mar 25 01:31:04 EDT 2015 There was an unexpected error (type=Not Found, status=404). No message available

我不确定为什么总是发生这种情况，因为我已经有一个如下的配置文件。

@Configuration
@EnableWebMvc
@ComponentScan(basePackages="config")
public class WebConfig extends WebMvcConfigurerAdapter {

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

}

我的项目的整个目录树是:

src-main|- java   |- config  |-  WebConfig.java

                  |- hello   |-  Application.java
                             |-  Greeting.java
                             |-  GreetingController.java
                             |-  PMethodController.java

        |- webapp |- WEB-INF |-  views   |-  pmethod.jsp
                             |-  web.xml

我从 friend 那里复制了 web.xml。该文件在他的项目中运行良好。

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">

    <servlet>
        <servlet-name>mvc-Dispatcher</servlet-name>
        <servlet-class>
            org.springframework.web.servlet.DispatcherServlet
        </servlet-class>
        <init-param>
            <param-name>contextClass</param-name>
            <param-value>org.springframework.web.context.support.AnnotationConfigWebApplicationContext</param-value>
        </init-param>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>config</param-value>
        </init-param>
    </servlet>

    <servlet-mapping>
        <servlet-name>mvc-Dispatcher</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>

    <welcome-file-list>
        <welcome-file>/</welcome-file>
    </welcome-file-list>
</web-app>

和我的 PMethodController.java:

@Controller
public class PMethodController {

    @RequestMapping("/method1")
    public String handleRequest() {
        return "pmethod";
    }

}

我的应用程序.java

@SpringBootApplication
public class Application {
    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }
}

取决于以上所有内容，如果我运行该项目然后输入 http://localhost:8080/method1它将在页面顶部显示白标错误页面。

Answer 1

试试这个:

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