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社区首页 >问答首页 >在web浏览器上，jsp文件只打印它的名称。它不打印body标记中的字符串内容。我试过很多方法，但都不管用

问在web浏览器上，jsp文件只打印它的名称。它不打印body标记中的字符串内容。我试过很多方法，但都不管用
EN

Stack Overflow用户
提问于 2021-05-29 12:39:54
回答 1查看 54关注 0票数 1

我是一个新的spring框架。我已经开始学习Spring Boot，在Spring Tool Suite-4 Spring boot应用程序、home.jsp或任何.jsp文件中，我不能在浏览器中显示而是文件名在浏览器中显示为字符串。我已经在pom.xml文件中使用了所有必需的依赖项

1.控制器类

代码语言：javascript
复制
package com.telusko.demo;

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


@Controller
public class HomeController 
{
    @RequestMapping("home")
    @ResponseBody
    public String home()
    {
        System.out.println("Hi..");
        return "home.jsp";
    }

2.Home.jsp

代码语言：javascript
复制
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
        I love java
</body>
</html>

3.Pom.xml

代码语言：javascript
复制
<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.5.0</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.telusko</groupId>
    <artifactId>MyWebApp</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>MyWebApp</name>
    <description>Demo project for Spring Boot</description>
    <properties>
        <java.version>1.8</java.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        
        <!-- https://mvnrepository.com/artifact/org.apache.tomcat.embed/tomcat-embed-core -->
<dependency>
    <groupId>org.apache.tomcat.embed</groupId>
    <artifactId>tomcat-embed-core</artifactId>
    <version>9.0.46</version>
</dependency>
        
        <!-- https://mvnrepository.com/artifact/ch.qos.logback/logback-classic -->
<!-- https://mvnrepository.com/artifact/javax.annotation/javax.annotation-api -->
<dependency>
    <groupId>javax.annotation</groupId>
    <artifactId>javax.annotation-api</artifactId>
    <version>1.3.2</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-json -->
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-json</artifactId>
    <version>2.1.9.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-databind -->
<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-databind</artifactId>
    <version>2.11.1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-core -->
<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-core</artifactId>
    <version>2.11.1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-annotations -->
<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-annotations</artifactId>
    <version>2.11.1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.datatype/jackson-datatype-jsr310 -->
<dependency>
    <groupId>com.fasterxml.jackson.datatype</groupId>
    <artifactId>jackson-datatype-jsr310</artifactId>
    <version>2.11.1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.module/jackson-module-parameter-names -->
<dependency>
    <groupId>com.fasterxml.jackson.module</groupId>
    <artifactId>jackson-module-parameter-names</artifactId>
    <version>2.11.1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-tomcat -->
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-tomcat</artifactId>
    <version>2.2.11.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.tomcat.embed/tomcat-embed-core -->
<dependency>
    <groupId>org.apache.tomcat.embed</groupId>
    <artifactId>tomcat-embed-core</artifactId>
    <version>9.0.46</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.tomcat.embed/tomcat-embed-el -->
<dependency>
    <groupId>org.apache.tomcat.embed</groupId>
    <artifactId>tomcat-embed-el</artifactId>
    <version>9.0.46</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.tomcat.embed/tomcat-embed-jasper -->
<dependency>
    <groupId>org.apache.tomcat.embed</groupId>
    <artifactId>tomcat-embed-jasper</artifactId>
    <version>9.0.46</version>
</dependency>
<dependency>
    <groupId>javax.servlet</groupId>
    <artifactId>jstl</artifactId>
    <scope>provided</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.tomcat.embed/tomcat-embed-websocket -->
<dependency>
    <groupId>org.apache.tomcat.embed</groupId>
    <artifactId>tomcat-embed-websocket</artifactId>
    <version>9.0.46</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.hibernate.validator/hibernate-validator -->
<dependency>
    <groupId>org.hibernate.validator</groupId>
    <artifactId>hibernate-validator</artifactId>
    <version>6.2.0.Final</version>
</dependency>
<!-- https://mvnrepository.com/artifact/javax.validation/validation-api -->
<dependency>
    <groupId>javax.validation</groupId>
    <artifactId>validation-api</artifactId>
    <version>2.0.1.Final</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.jboss.logging/jboss-logging -->
<dependency>
    <groupId>org.jboss.logging</groupId>
    <artifactId>jboss-logging</artifactId>
    <version>3.3.2.Final</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.fasterxml/classmate -->
<dependency>
    <groupId>com.fasterxml</groupId>
    <artifactId>classmate</artifactId>
    <version>1.3.4</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-web -->
<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-web</artifactId>
    <version>5.3.2</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc -->
<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-webmvc</artifactId>
    <version>5.3.3</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-web -->
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-web</artifactId>
    <version>2.4.2</version>
</dependency>

        
    </dependencies>

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

    <resources>
        <resource>
            <directory>src/main/resources</directory>
            <filtering>true</filtering>
        </resource>
    </resources>
    
</build>

</project>

4.在浏览器输出中

代码语言：javascript
复制
home.jsp

5.application.properties

代码语言：javascript
复制
spring.mvc.view.prefix=/pages/
spring.mvc.view.suffix=.jsp
spring.profiles.active=@spring.profiles.active@

6.在控制台中

代码语言：javascript
复制
2021-05-29 10:13:35.322[0;39m [32m INFO[0;39m [35m12916[0;39m [2m---[0;39m [2m[           main][0;39m [36mcom.telusko.demo.MyWebAppApplication    [0;39m [2m:[0;39m Starting MyWebAppApplication using Java 15.0.2 on DESKTOP-JF5BSMC with PID 12916 (C:\Users\Lakshmana Sai\SpringWorkspace\MyWebApp\target\classes started by Lakshmana Sai in C:\Users\Lakshmana Sai\SpringWorkspace\MyWebApp)
[2m2021-05-29 10:13:35.326[0;39m [32m INFO[0;39m [35m12916[0;39m [2m---[0;39m [2m[           main][0;39m [36mcom.telusko.demo.MyWebAppApplication    [0;39m [2m:[0;39m The following profiles are active: @spring.profiles.active@
[2m2021-05-29 10:13:36.898[0;39m [32m INFO[0;39m [35m12916[0;39m [2m---[0;39m [2m[           main][0;39m [36mo.s.b.w.embedded.tomcat.TomcatWebServer [0;39m [2m:[0;39m Tomcat initialized with port(s): 8080 (http)
[2m2021-05-29 10:13:36.912[0;39m [32m INFO[0;39m [35m12916[0;39m [2m---[0;39m [2m[           main][0;39m [36mo.apache.catalina.core.StandardService  [0;39m [2m:[0;39m Starting service [Tomcat]
[2m2021-05-29 10:13:36.912[0;39m [32m INFO[0;39m [35m12916[0;39m [2m---[0;39m [2m[           main][0;39m [36morg.apache.catalina.core.StandardEngine [0;39m [2m:[0;39m Starting Servlet engine: [Apache Tomcat/9.0.46]
[2m2021-05-29 10:13:37.306[0;39m [32m INFO[0;39m [35m12916[0;39m [2m---[0;39m [2m[           main][0;39m [36morg.apache.jasper.servlet.TldScanner    [0;39m [2m:[0;39m At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
[2m2021-05-29 10:13:37.324[0;39m [32m INFO[0;39m [35m12916[0;39m [2m---[0;39m [2m[           main][0;39m [36mo.a.c.c.C.[Tomcat].[localhost].[/]      [0;39m [2m:[0;39m Initializing Spring embedded WebApplicationContext
[2m2021-05-29 10:13:37.325[0;39m [32m INFO[0;39m [35m12916[0;39m [2m---[0;39m [2m[           main][0;39m [36mw.s.c.ServletWebServerApplicationContext[0;39m [2m:[0;39m Root WebApplicationContext: initialization completed in 1914 ms
[2m2021-05-29 10:13:37.961[0;39m [32m INFO[0;39m [35m12916[0;39m [2m---[0;39m [2m[           main][0;39m [36mo.s.b.w.embedded.tomcat.TomcatWebServer [0;39m [2m:[0;39m Tomcat started on port(s): 8080 (http) with context path ''
[2m2021-05-29 10:13:37.975[0;39m [32m INFO[0;39m [35m12916[0;39m [2m---[0;39m [2m[           main][0;39m [36mcom.telusko.demo.MyWebAppApplication    [0;39m [2m:[0;39m Started MyWebAppApplication in 3.253 seconds (JVM running for 4.319)
[2m2021-05-29 10:13:37.977[0;39m [32m INFO[0;39m [35m12916[0;39m [2m---[0;39m [2m[           main][0;39m [36mo.s.b.a.ApplicationAvailabilityBean     [0;39m [2m:[0;39m Application availability state LivenessState changed to CORRECT
[2m2021-05-29 10:13:37.979[0;39m [32m INFO[0;39m [35m12916[0;39m [2m---[0;39m [2m[           main][0;39m [36mo.s.b.a.ApplicationAvailabilityBean     [0;39m [2m:[0;39m Application availability state ReadinessState changed to ACCEPTING_TRAFFIC
spring-boot
EN

回答 1

Stack Overflow用户

发布于 2021-05-29 14:45:14

您应该删除@ResponseBody注释。它表明从方法返回的内容应该用作响应的主体，而这并不是您想要的。

您还应该将从"home.jsp"返回的字符串更改为"home"。不需要.jsp后缀。

最后，添加<packaging>war</packaging>，因为jar打包不支持JSP。

票数 0
EN
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：

https://stackoverflow.com/questions/67747783

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