SpringBoot整合JSP
分步骤:
(1) 创建Maven web project;
(2) 在pom.xml文件添加依赖;
(3) 配置application.properties支持jsp
(4) 编写测试Controller
(5) 编写JSP页面
(6) 编写启动类App.java
(1)创建Maven web project
使用Eclipse新建一个Maven Web Project ,项目取名为:SpringBootTest
(2)在pom.xml文件添加依赖
<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</groupId> <artifactId>SpringBootTest</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>war</packaging> <!-- 引入继承SpringBoot,实现jar的依赖管理 --> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.3.3.RELEASE</version> <relativePath/> </parent> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-tomcat</artifactId> <scope>provided</scope> </dependency> <dependency> <groupId>org.apache.tomcat.embed</groupId> <artifactId>tomcat-embed-jasper</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> </dependencies> <build> <plugins> <plugin> <artifactId>maven-war-plugin</artifactId> <configuration> <version>2.5</version> </configuration> </plugin> </plugins> </build> </project>这里注意下,要是war包。
(3)application.properties配置
spring.mvc.view.prefix=/WEB-INF/jsp/ spring.mvc.view.suffix=.jsp(4)编写测试Controller
package com.controller; import java.util.Map; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; @Controller public class HelloController { private String hello; @RequestMapping("/helloJsp") public String helloJsp(Map<String,Object> map){ System.out.println("HelloController.helloJsp().hello="+" "+hello); map.put("hello",hello); return"helloJsp"; } }
这里注意下我的注解用的是@Controller而不是@ResController,说明我要返回的是页面,单是如果返回的不是页面就要在方法前面加@ResponseBody,或者直接把类前面的改成@ResController,不然会报404
(5)编写JSP页面
在 src/main 下面创建 webapp/WEB-INF/jsp 目录用来存放我们的jsp页面:helloJsp.jsp
(6)编写启动类
编写App.java启动类:
package com.controller; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.EnableAutoConfiguration; import org.springframework.context.annotation.ComponentScan; //有多个项目的时候,要加入这个注解,用来扫描包 @ComponentScan(basePackages="package com.controller") //只能使用者一个注解 @EnableAutoConfiguration public class App { public static void main(String[] args) { SpringApplication.run(App.class,args); } }最后启动:输入:http://localhost:8080/helloJsp
项目结构: