问题：

Spring Boot JSP 404。白标签错误页面

楚志强

2023-03-14

无法使用spring-boot加载非常简单的JSP页面，导致404未找到

HmisApplication.class

@SpringBootApplication
public class HmisApplication extends SpringBootServletInitializer {
@Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
    return application.sources(HmisApplication.class);
}

public static void main(String[] args) throws Exception {
    SpringApplication.run(HmisApplication.class, args);
}
}

主控制器。Java语言

@Controller
public class WelcomeController {
@RequestMapping("/")
public String home(Map<String, Object> model) {
    model.put("message", "HowToDoInJava Reader !!");
    return "index";
}

@RequestMapping("/next")
public String next(Map<String, Object> model) {
    model.put("message", "You are in new page !!");
    return "next";
}
}

应用属性

spring.profiles.active=dev,build-info

server.contextPath=/hmis
server.port=7070
spring.metrics.export.enabled=true

spring.main.banner-mode=off

spring.mvc.view.prefix: /WEB-INF/jsp/
spring.mvc.view.suffix: .jsp
application.message: Hello Phil

# HTTP encoding (HttpEncodingProperties)
spring.http.encoding.force-request=true
spring.http.encoding.charset=UTF-8
spring.http.encoding.enabled=true
spring.http.encoding.force=true

pom.xml

<?xml version="1.0" encoding="UTF-8"?>

http://maven.apache.org/xsd/maven-4.0.0.xsd"

<groupId>com.hmis</groupId>
<artifactId>hmis</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>

<name>hmis</name>
<description>Demo project for Spring Boot</description>

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.5.3.RELEASE</version>
    <relativePath/> <!-- lookup parent from repository -->
</parent>

<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
    <java.version>1.8</java.version>
</properties>

<dependencies>
    <dependency>
        <groupId>org.activiti</groupId>
        <artifactId>activiti-spring-boot-starter-basic</artifactId>
        <version>5.21.0</version>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-jpa</artifactId>
    </dependency>
    <!--
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-security</artifactId>
    </dependency>
    -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>

    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <scope>runtime</scope>
    </dependency>
    <!-- Tomcat Embed -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-tomcat</artifactId>
        <!--<scope>provided</scope>-->
    </dependency>
    <!-- JSTL -->
    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>jstl</artifactId>
    </dependency>
    <!-- To compile JSP files -->
    <dependency>
        <groupId>org.apache.tomcat.embed</groupId>
        <artifactId>tomcat-embed-jasper</artifactId>
        <scope>provided</scope>
    </dependency>

</dependencies>

<build>
    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
        </plugin>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-surefire-plugin</artifactId>
            <configuration>
                <useSystemClassLoader>false</useSystemClassLoader>
            </configuration>
        </plugin>
    </plugins>
</build>

MVC配置。Java语言

@Configuration
@EnableWebMvc
@ComponentScan
public class MvcConfiguration extends WebMvcConfigurerAdapter
{
@Override
public void configureViewResolvers(ViewResolverRegistry registry) {
    InternalResourceViewResolver resolver = new InternalResourceViewResolver();
    resolver.setPrefix("/WEB-INF/jsp/");
    resolver.setSuffix(".jsp");
    resolver.setViewClass(JstlView.class);
    registry.viewResolver(resolver);
}
}

文件结构

        ├── src
        ├── main
        │   ├── java
        │   │   └── com
        │   │       └── hmis
        │   │             ├── HmisApplication.java
        │   │             ├── MvcConfiguration.java
        │   │             ├── WelcomeController.java  
        │   └── resources
        │       └── application.properties
        │       └── webapp
        │             └── WEB-INF
        │                   └── jsp
        │                         └── index.jsp
        │                         └── next.jsp

共有2个答案

壤驷阳波

2023-03-14

我得到了显示如下内容的jsp页面。我正在使用IntelliJ Ultimate。

1.创建webapp、WEB-INF、jsp目录，如src-

2.放置了要在src渲染的jsp页面（login.jsp）-

下面的屏幕截图供快速参考

3.在application.properties文件中增加以下内容：

   spring.mvc.view.prefix= /WEB-INF/jsp/
   spring.mvc.view.suffix= .jsp

4.在pom.xml中注释了来自tomcat-embed-jasper依赖的版本

 <!-- https://mvnrepository.com/artifact/org.apache.tomcat.embed/tomcat-embed-jasper -->
        <dependency>
            <groupId>org.apache.tomcat.embed</groupId>
            <artifactId>tomcat-embed-jasper</artifactId>
   <!--        <version>10.0.2</version>-->
        </dependency>

黎鹤轩

2023-03-14

我解决了一些更改后的问题pom.xml.注释出tomcat-embed-jasper依赖项的范围标记。

<groupId>com.hmis</groupId>
<artifactId>hmis</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>

<name>hmis</name>
<description>Demo project for Spring Boot</description>

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.5.3.RELEASE</version>
    <relativePath/> <!-- lookup parent from repository -->
</parent>

<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
    <java.version>1.8</java.version>
</properties>

<dependencies>
    <dependency>
        <groupId>org.activiti</groupId>
        <artifactId>activiti-spring-boot-starter-basic</artifactId>
        <version>5.21.0</version>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-jpa</artifactId>
    </dependency>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-security</artifactId>
    </dependency>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>

    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <scope>runtime</scope>
    </dependency>
    <!-- Tomcat Embed -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-tomcat</artifactId>
        <!--<scope>provided</scope>-->
    </dependency>
    <!-- JSTL -->
    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>jstl</artifactId>
        <version>1.2</version>
    </dependency>
    <!-- To compile JSP files -->
    <dependency>
        <groupId>org.apache.tomcat.embed</groupId>
        <artifactId>tomcat-embed-jasper</artifactId>
        <!--<scope>provided</scope>-->
    </dependency>
</dependencies>

<build>
    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
        </plugin>
    </plugins>
</build>

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Spring Boot JSP 404。白标签错误页面

共有2个答案

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