Spring Boot gradle 集成servlet/jsp 教程及示例

1、build.gradle 配置

注意，加入了war插件，在依赖中加入了jstl、tomcat-embed-jasper，这样才能运行jsp页面。

buildscript {
ext {
springBootVersion = '1.5.3.RELEASE'
}
repositories {
maven { url "http://maven.aliyun.com/nexus/content/groups/public/" }
}
dependencies {
classpath("org.springframework.boot:spring-boot-gradle-plugin:${springBootVersion}")
}
}
apply plugin: 'java'
apply plugin: 'idea'
apply plugin: 'org.springframework.boot'
apply plugin: 'war'

version = '0.0.1-SNAPSHOT'
sourceCompatibility = 1.8
repositories {
maven { url "http://maven.aliyun.com/nexus/content/groups/public/" }
}
dependencies {
compile 'jstl:jstl:1.2'
compile 'org.apache.tomcat.embed:tomcat-embed-jasper'
compile('org.springframework.boot:spring-boot-starter-web')
testCompile('org.springframework.boot:spring-boot-starter-test')
}

2、spring boot 入口文件配置

注意：继承

SpringBootServletInitializer

,开启

@ServletComponentScan

@SpringBootApplication
@ServletComponentScan
public class DemoApplication extends SpringBootServletInitializer {
@Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder builder) {
return builder.sources(DemoApplication.class);
}
public static void main(String[] args) {
SpringApplication.run(DemoApplication.class, args);
}
}

3、servlet/jsp 的正确姿势

文件布放图

3.1、servlet

注意：使用了

@WebServlet

配置页面访问地址，访问jsp页面需要使用完整的相对路径

/WEB-INF/jsp/index.jsp

@WebServlet( urlPatterns = {"/index"})
public class Index extends HttpServlet {
protected void doPost(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
doGet(req, resp);
}
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
request.getRequestDispatcher("/WEB-INF/jsp/index.jsp").forward(request, response);
}
}

3.2、controller方式使用jsp

注意：配合application.properties配置，可以使用简化的jsp路径

①application.properties配置

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

②controller编写

@Controller
public class HelloController {
@RequestMapping("/index1")
public ModelAndView index(ModelAndView view) {
view.setViewName("index");
return view;
}
}

4、运行方法

右键入口文件直接运行
bootRun
执行gradle build，java -jar xxx.war

5、完整实例代码

https://github.com/weibaohui/springboot-servlet-jsp-war-demo