Question

所以，今天我终于决定试用IntelliJ IDEA。

设置完所有内容后，我试图制作一个非常简单的Spring webMVC 项目

因为这是一个Spring应用程序，所以我不会这样做有任何错误或警告，但在我运行项目时只有404页...

Tomcat 9在没有任何警告或错误的情况下运行，Java似乎也是如此没有问题。运行将以太常见的方式打开浏览器404 - 找不到资源错误。

SpringTest.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.clomez</groupId>
    <artifactId>SpringTest</artifactId>
    <version>1.0-SNAPSHOT</version>

    <packaging>war</packaging>

    <dependencies>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>4.3.6.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>javax</groupId>
            <artifactId>javaee-web-api</artifactId>
            <version>7.0</version>
            <scope>provided</scope>
        </dependency>
    </dependencies>
</project>

的HomeController

package com.clomez.controller;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

/**
 * Created by Clomez-admin on 14.4.2017.
 */

@Controller
public class HomeController {

    @RequestMapping(value = "/")
    public String home(){

        return "home";
    }
}

WebInit.class

package com.clomez.config;

import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;

/**
 * Created by Clomez-admin on 14.4.2017.
 */

@Configuration
public class WebInit  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[]{"/"};
    }
}

RootConf.class

package com.clomez.config;

import org.springframework.context.annotation.Configuration;

/**
 * Created by Clomez-admin on 14.4.2017.
 */

@Configuration
public class RootConfig {
}

WebConfig.class

package com.clomez.config;

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

/**
 * Created by Clomez-admin on 14.4.2017.
 */

@Configuration
@EnableWebMvc
@ComponentScan("com.clomez")
public class WebConfig extends WebMvcConfigurerAdapter{
    @Bean
    public InternalResourceViewResolver resolver(){

        InternalResourceViewResolver resolver = new InternalResourceViewResolver();
        resolver.setPrefix("/");
        resolver.setSuffix(".jsp");
        return resolver;
    }
}

请有人帮我这个吗？两个月后，我大多觉得从这个Spring框架中得到癌症，但如果我想完成学位，我没有选择。

Tomcat运行顺利，编辑器中没有任何错误或警告，它会显示404浏览器 - 找不到home.jsp。

Answer 1

我已经在Wildfly 10上运行了你的代码，在我将一个home.jsp放到我的/src/main/webapp/目录中后，我收到了它的内容。

09:55:10,036 INFO  [io.undertow.servlet] (ServerService Thread Pool -- 69) 1 Spring WebApplicationInitializers detected on classpath
09:55:10,105 INFO  [javax.enterprise.resource.webcontainer.jsf.config] (ServerService Thread Pool -- 69) Initializing Mojarra 2.2.13.SP1 20160303-1204 for context '/SpringTest-0.0.1-SNAPSHOT'
09:55:10,808 INFO  [io.undertow.servlet] (ServerService Thread Pool -- 69) Initializing Spring root WebApplicationContext
09:55:10,809 INFO  [org.springframework.web.context.ContextLoader] (ServerService Thread Pool -- 69) Root WebApplicationContext: initialization started
09:55:10,818 INFO  [org.springframework.web.context.support.AnnotationConfigWebApplicationContext] (ServerService Thread Pool -- 69) Refreshing Root WebApplicationContext: startup date [Fri Apr 14 09:55:10 EDT 2017]; root of context hierarchy
09:55:10,852 INFO  [org.springframework.web.context.support.AnnotationConfigWebApplicationContext] (ServerService Thread Pool -- 69) Registering annotated classes: [class com.clomez.config.RootConfig]
09:55:10,962 INFO  [org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor] (ServerService Thread Pool -- 69) JSR-330 'javax.inject.Inject' annotation found and supported for autowiring
09:55:11,018 INFO  [org.springframework.web.context.ContextLoader] (ServerService Thread Pool -- 69) Root WebApplicationContext: initialization completed in 209 ms
09:55:11,027 INFO  [io.undertow.servlet] (ServerService Thread Pool -- 69) Initializing Spring FrameworkServlet 'dispatcher'
09:55:11,027 INFO  [org.springframework.web.servlet.DispatcherServlet] (ServerService Thread Pool -- 69) FrameworkServlet 'dispatcher': initialization started
09:55:11,030 INFO  [org.springframework.web.context.support.AnnotationConfigWebApplicationContext] (ServerService Thread Pool -- 69) Refreshing WebApplicationContext for namespace 'dispatcher-servlet': startup date [Fri Apr 14 09:55:11 EDT 2017]; parent: Root WebApplicationContext
09:55:11,030 INFO  [org.springframework.web.context.support.AnnotationConfigWebApplicationContext] (ServerService Thread Pool -- 69) Registering annotated classes: [class com.clomez.config.WebConfig]
09:55:11,116 INFO  [org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor] (ServerService Thread Pool -- 69) JSR-330 'javax.inject.Inject' annotation found and supported for autowiring
09:55:11,270 INFO  [org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping] (ServerService Thread Pool -- 69) Mapped "{[/]}" onto public java.lang.String com.clomez.controller.HomeController.home()
09:55:11,481 INFO  [org.hibernate.validator.internal.util.Version] (ServerService Thread Pool -- 69) HV000001: Hibernate Validator 5.2.4.Final
09:55:11,539 INFO  [org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter] (ServerService Thread Pool -- 69) Looking for @ControllerAdvice: WebApplicationContext for namespace 'dispatcher-servlet': startup date [Fri Apr 14 09:55:11 EDT 2017]; parent: Root WebApplicationContext
09:55:11,615 INFO  [org.springframework.web.servlet.DispatcherServlet] (ServerService Thread Pool -- 69) FrameworkServlet 'dispatcher': initialization completed in 588 ms
09:55:11,616 INFO  [org.wildfly.extension.undertow] (ServerService Thread Pool -- 69) WFLYUT0021: Registered web context: /SpringTest-0.0.1-SNAPSHOT
09:55:11,635 INFO  [org.jboss.as.server] (ServerService Thread Pool -- 34) WFLYSRV0010: Deployed "SpringTest-0.0.1-SNAPSHOT.war" (runtime-name : "SpringTest-0.0.1-SNAPSHOT.war")

当您在"home"中返回HomeController时，您在InternalResourceViewResolver中设置的WebConfig用于解析针对内部或战争的jsps（默认情况下）你的战争文件的基础由maven添加/src/main/webapp。

编辑：

为了确认你，我下载了Tomcat 9.0.0.M19，当我请求http://localhost:8080/SpringTest-0.0.1-SNAPSHOT/时，我收到了404。我会给你一个快速的旋转。

编辑2：

Tomcat 8.5.13也返回404。。。。 8.5和9都支持Servlet 3规范，但我猜测当它与这些较新的Spring功能发生冲突时，某处会出现皱纹。我发现Spring Java Config: Tomcat deploy without web.xml和http://docs.spring.io/autorepo/docs/spring-framework/4.3.x/javadoc-api/org/springframework/web/WebApplicationInitializer.html注意到：

映射到＆＃39; /＆＃39;在Tomcat下

Apache Tomcat将其内部DefaultServlet映射到＆＃34; /＆＃34;，并且在Tomcat版本＆lt; = 7.0.14上，无法以编程方式覆盖此servlet映射。 7.0.15修复了这个问题。覆盖＆＃34; /＆＃34; servlet映射也已在GlassFish 3.1下成功测试。

我确实尝试将您的映射从/更改为/home，Tomcat仍然不高兴（Wildfly是）。

如果我找到任何内容，可以进行更多编辑。

编辑3：

嗯。好吧，我有点吃惊。使用Tomcat 9进行测试，而不是请求http://localhost:8080/SpringTest-0.0.1-SNAPSHOT/尝试转到http://localhost:8080/SpringTest/。使用home.jsp，如上所述，您的代码可以使用！

编辑4（叹气）：

为了完整性，或许只是因为我使用Eclipse，我不得不添加2位maven构建插件配置：

<build>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>3.5.1</version>
            <configuration>
                <source>1.8</source>
                <target>1.8</target>
            </configuration>
        </plugin>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-war-plugin</artifactId>
            <version>3.0.0</version>
            <configuration>
                <failOnMissingWebXml>false</failOnMissingWebXml>
            </configuration>
        </plugin>
    </plugins>
</build>

如果他们以前没有这些影响，我不会指望这些影响你。

Spring Maven + IntelliJ和404

SpringTest.xml

的HomeController

WebInit.class

1 个答案: