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014_SpringBoot视图层技术thymeleaf-访问域对象
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014_SpringBoot视图层技术thymeleaf-访问域对象
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1. 使用maven構(gòu)建SpringBoot的名叫spring-boot-view-thymeleaf-scope項(xiàng)目
2. pom.xml?
<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.bjbs</groupId><artifactId>spring-boot-view-thymeleaf-scope</artifactId><version>0.0.1-SNAPSHOT</version><parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>1.5.13.RELEASE</version></parent><!-- 修改jdk版本 --><properties><java.version>1.8</java.version><!-- 指定thymeleaf和thymeleaf-layout-dialect高版本可以防止html標(biāo)簽不規(guī)范報(bào)錯(cuò) --><thymeleaf.version>3.0.2.RELEASE</thymeleaf.version><thymeleaf-layout-dialect.version>2.0.4</thymeleaf-layout-dialect.version></properties><dependencies><!-- springBoot的啟動(dòng)器 --><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-thymeleaf</artifactId></dependency></dependencies> </project>3. 在src/main/resources/templates下新建scope.html
<!DOCTYPE html> <html><head><meta charset="UTF-8" /><title>Thymeleaf獲取作用域?qū)ο笾械臄?shù)據(jù)</title></head><body>Request: <span th:text="${#httpServletRequest.getAttribute('req')}"></span><br/>Session: <span th:text="${session.sess}"></span><br/>Application: <span th:text="${application.app}"></span></body> </html>4. 新建UserController.java
package com.bjbs.controller;import javax.servlet.http.HttpServletRequest; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.RequestMapping;@Controller public class UserController {@RequestMapping("/scope")public String scope(HttpServletRequest request, Model model) {request.setAttribute("req", "Request作用域中的參數(shù)");request.getSession().setAttribute("sess", "Session作用域中的參數(shù)");request.getSession().getServletContext().setAttribute("app", "Application作用域中的參數(shù)");return "scope";} }5. 新建App.java
package com.bjbs;import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication;/*** SpringBoot啟動(dòng)類*/ @SpringBootApplication public class App {public static void main(String[] args) {SpringApplication.run(App.class, args);} }6. 啟動(dòng)項(xiàng)目, 并使用瀏覽器訪問(wèn)
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