springboot-jsp支持jsp页面(第八篇)
创建maven项目
使用idea创建一个项目名为springboot-jsp的项目,结构如下:
在pom.xml中引入依赖包
<?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.example.springboot</groupId> <artifactId>springboot-jsp</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>jar</packaging> <name>springboot-jsp</name> <description>Demo project for Spring Boot</description> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.5.12.RELEASE</version> <relativePath/> <!-- lookup parent from repository --> </parent> <properties> <!-- 指定项目编码方式 --> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <!-- 指定jdk版本,默认为jdk1.6 --> <java.version>1.7</java.version> </properties> <dependencies> <!-- 引入spring-boot-web mvc,aop依赖包 --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> <!-- 添加tomcat插件包 --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-tomcat</artifactId> </dependency> <dependency> <groupId>org.apache.tomcat.embed</groupId> <artifactId>tomcat-embed-jasper</artifactId> </dependency> <!-- 添加servlet依赖包 --> <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <scope>provided</scope> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> </project>
在application.properties文件中增加jsp配置
#添加jsp配置 # 页面默认前缀目录 spring.mvc.view.prefix=/WEB-INF/jsp/ # 响应页面默认后缀 spring.mvc.view.suffix=.jsp
在src/main下创建一个webapp目录,如下
创建一个index.jsp页面,内容如下
<%@ 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> 内容: ${message} </body> </html>
编写controller类
package com.example.springboot.jsp.controller;
import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import java.util.Map; /** * @desc * @Author wangsh * @date 2018/5/5 18:18 * @return */ @Controller @RequestMapping("/jsp") public class JspConroller { @RequestMapping("/index") public String index(Map<String, Object> model) { model.put("message", "spring boot对jsp的支持方式"); return "index"; } }
编写服务启动类
package com.example.springboot.jsp; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.boot.web.support.SpringBootServletInitializer; @SpringBootApplication public class SpringbootJspApplication extends SpringBootServletInitializer{ public static void main(String[] args) { SpringApplication.run(SpringbootJspApplication.class, args); } }
启动服务后浏览器测试
浏览器访问:http://localhost:8080/jsp/index
提示页面找不到错误,该错误是由于在生成的target目录中,没有将webapp目录编译到其中导致。eclipse中部署tomcat不存在该问题,这个大概是idea中的一个bug.
解决办法:
选择启动类中的edit configurations ,打开如下界面:
选择启动类,在右侧work directory 这一行,点击“文件”小图标,选择启动类工作目录,我们这里的项目创建的是module,所以就选择MODULE_DIR即可。
重启服务,再次浏览器测试,如下访问正常,index.jsp中已经取到值。