一、簡介
SpringMVC是非常偉大的框架，開源，發(fā)展迅速。優(yōu)秀的設(shè)計必然會劃分、解耦。所以，spring有很多子項目，比如core、context、bean、mvc等。這對知根底的人來說很簡單明了，然而springmvc就是為了傻瓜式的操作而發(fā)明的。對于初學(xué)springmvc的人來說，想要入手就開發(fā)需要拷貝一連串的dependency而不知道這個是干嘛，不知道是不是少了依賴。像我剛接觸springmvc的時候到處百度教程而發(fā)現(xiàn)各有不同，于是復(fù)制了一個又一個代碼卻不能自己設(shè)置，根本原因是不了解各個依賴的包。
Spring-Boot 正是為了解決繁復(fù)的代碼配置而產(chǎn)生的。Spring-Boot 也是基于java-base 開發(fā)的代碼，及不用xml文件配置，所有代碼都由java來完成。還可以加入Groovy的動態(tài)語言執(zhí)行。
二、搭建一個基本的web-mvc 項目
2.1 Configure environment
- java 1.8+
- maven 3.3+
- spring-boot 1.3.5
- idea 15
- Thymeleaf 3
2.2 Start
在idea中，選擇new-》maven創(chuàng)建一個空的maven項目,比如名字springboot-test。
2.2.1pom.xml
設(shè)定java版本：
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<properties> <java.version>1.8</java.version></properties> |
添加依賴版本管理dependencyManagement
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<dependencyManagement> <dependencies> <dependency> <!-- Import dependency management from Spring Boot --> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-dependencies</artifactId> <version>1.3.5.RELEASE</version> <type>pom</type> <scope>import</scope> </dependency> </dependencies></dependencyManagement> |
添加spring-web項目依賴
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<dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-devtools</artifactId> <optional>true</optional> </dependency></dependencies> |
添加build-plugin
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<build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> <configuration> <fork>true</fork> </configuration> </plugin> </plugins> </build> |
如此，一個簡單的restful的webservice的項目就搭建好了。如果想要支持視圖渲染，即jsp、freeMark、velocity等，添加對應(yīng)的依賴即可。比如，我使用Thymeleaf模板：
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<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-thymeleaf</artifactId></dependency> |
2.2.2 創(chuàng)建java代碼
如果新建項目的名字是：springboot-test. 則創(chuàng)建包springboot-test/src/main/java/com/test.
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com +- example +- myproject +- Application.java | +- domain | +- Customer.java | +- CustomerRepository.java | +- service | +- CustomerService.java | +- web +- CustomerController.java |
com.test是我們的基本包名。下面創(chuàng)建配置類com.test.AppConfig。
package com.test;
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import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.SpringBootApplication; /** * Created by miaorf on 2016/6/19. */@SpringBootApplicationpublic class AppConfig { public static void main(String[] args) { SpringApplication.run(AppConfig.class); }} |
@SpringBootApplication 標(biāo)注啟動配置入口，可以發(fā)現(xiàn)通過一個main方法啟動。使用這個注解的類必須放置于最外層包中，因為默認(rèn)掃描這個類以下的包。否則需要自己配置@ComponentScan。
這樣，配置基本完成了。下面開發(fā)控制層controller：
創(chuàng)建com.test.controller.HelloController。
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package com.test.controller; import org.springframework.stereotype.Controller;import org.springframework.ui.Model;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.ResponseBody; import java.util.HashMap;import java.util.Map; /** * Created by miaorf on 2016/6/19. */@Controllerpublic class HelloController { @RequestMapping("/index") public String index(Model model){ model.addAttribute("name","Ryan"); return "index"; } @RequestMapping("/json") @ResponseBody public Map<String,Object> json(){ Map<String,Object> map = new HashMap<String,Object>(); map.put("name","Ryan"); map.put("age","18"); map.put("sex","man"); return map; }} |
創(chuàng)建視圖代碼：
視圖默認(rèn)放在springboot-test\src\main\resources\templates**.
所以創(chuàng)建springboot-test\src\main\resources\templates\index.html
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<!DOCTYPE HTML><html xmlns:th="http://www.thymeleaf.org"><head> <title>Getting Started: Serving Web Content</title> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /></head><body><p th:text="'Hello, ' + ${name} + '!'" /></body></html> |
D:\workspace\springboot\springboot-test\src\main\webapp\hello.html
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<!DOCTYPE HTML><html><head> <title>Getting Started: Serving Web Content</title> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /></head><body>hello, This is static page. not resolve by server, just the html.</body></html> |
2.2.3 run
啟動方式多種，可以啟動main方法，也可以通過命令行啟動：
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D:\temp\springboot-test>mvn spring-boot:run[INFO] Scanning for projects...[WARNING][WARNING] Some problems were encountered while building the effective model for com.test:springboot-test:jar:1.0-SNAPSHOT[WARNING] 'build.plugins.plugin.version' for org.springframework.boot:spring-boot-maven-plugin is missing. @ line 49, column 21[WARNING][WARNING] It is highly recommended to fix these problems because they threaten the stability of your build.[WARNING][WARNING] For this reason, future Maven versions might no longer support building such malformed projects.[WARNING][INFO][INFO] ------------------------------------------------------------------------[INFO] Building springboot-test 1.0-SNAPSHOT[INFO] ------------------------------------------------------------------------[INFO][INFO] >>> spring-boot-maven-plugin:1.3.5.RELEASE:run (default-cli) > test-compile @ springboot-test >>>[INFO][INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ springboot-test ---[WARNING] Using platform encoding (GBK actually) to copy filtered resources, i.e. build is platform dependent![INFO] Copying 2 resources[INFO][INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ springboot-test ---[INFO] Nothing to compile - all classes are up to date[INFO][INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ springboot-test ---[WARNING] Using platform encoding (GBK actually) to copy filtered resources, i.e. build is platform dependent![INFO] skip non existing resourceDirectory D:\temp\springboot-test\src\test\resources[INFO][INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ springboot-test ---[INFO] No sources to compile[INFO][INFO] <<< spring-boot-maven-plugin:1.3.5.RELEASE:run (default-cli) < test-compile @ springboot-test <<<[INFO][INFO] --- spring-boot-maven-plugin:1.3.5.RELEASE:run (default-cli) @ springboot-test ---[INFO] Attaching agents: [] . ____ _ __ _ _ /\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \ \\/ ___)| |_)| | | | | || (_| | ) ) ) ) ' |____| .__|_| |_|_| |_\__, | / / / / =========|_|==============|___/=/_/_/_/ :: Spring Boot :: (v1.3.5.RELEASE) |
瀏覽器訪問：localhost:8080/index
demo下載路徑：springboot.rar
以上就是本文的全部內(nèi)容，希望對大家的學(xué)習(xí)有所幫助，也希望大家多多支持服務(wù)器之家。
原文鏈接：http://www.cnblogs.com/woshimrf/p/5602051.html
