SpringBoot+Maven项目实战（1）：新建Maven项目

转载：http://blog.csdn.net/u011197448/article/details/53008823

IDEA 15.0.2 + Maven3 + JDK7 
第一步：搭建maven项目 

当前项目结构如下图

注意JDK版本 

Maven项目新建完毕，下一篇集成Spring Boot

项目结构图

1.pom文件添加SpingBoot依赖

<?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.sbm</groupId>    <artifactId>SpringBoot_Maven</artifactId>    <version>1.0-SNAPSHOT</version>    <parent>        <groupId>org.springframework.boot</groupId>        <artifactId>spring-boot-starter-parent</artifactId>        <version>1.4.0.RELEASE</version>        <relativePath/> <!-- lookup parent from repository -->    </parent>    <properties>        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>        <java.version>1.7</java.version>    </properties>    <dependencies>    <!--支持 Web 应用开发，包含 Tomcat 和 spring-mvc。 -->    <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>    <!--模板引擎-->    <!--  <dependency>          <groupId>org.springframework.boot</groupId>          <artifactId>spring-boot-starter-thymeleaf</artifactId>      </dependency>-->    <dependency>        <groupId>org.springframework.boot</groupId>        <artifactId>spring-boot-starter-freemarker</artifactId>    </dependency>    <!--Json Support-->    <dependency>        <groupId>com.alibaba</groupId>        <artifactId>fastjson</artifactId>        <version>1.1.43</version>    </dependency>    <!--springboot中修改完文件后自动reload的插件，修改完文件Ctrl + F9 Make一下就可以-->    <dependency>        <groupId>org.springframework</groupId>        <artifactId>springloaded</artifactId>        <version>1.2.3.RELEASE</version>    </dependency>    <!--springboot中修改完文件后自动reload的插件 end--></dependencies><build><plugins>    <plugin>        <groupId>org.springframework.boot</groupId>        <artifactId>spring-boot-maven-plugin</artifactId>        <dependencies>            <dependency>                <groupId>org.springframework</groupId>                <artifactId>springloaded</artifactId>                <version>1.2.3.RELEASE</version>            </dependency>        </dependencies>    </plugin></plugins></build>        <!--配置远程仓库地址--><repositories><repository>    <id>spring-milestone</id>    <url>https://repo.spring.io/libs-release</url></repository></repositories>        <!--配置远程仓库地址--><pluginRepositories><pluginRepository>    <id>spring-milestone</id>    <url>https://repo.spring.io/libs-release</url></pluginRepository></pluginRepositories></project>
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2.编写启动类Applaction

package com.sbm;import org.apache.ibatis.session.SqlSessionFactory;import org.apache.tomcat.jdbc.pool.DataSource;import org.mybatis.spring.SqlSessionFactoryBean;import org.mybatis.spring.annotation.MapperScan;import org.mybatis.spring.mapper.MapperScannerConfigurer;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.EnableAutoConfiguration;import org.springframework.boot.autoconfigure.SpringBootApplication;import org.springframework.boot.context.properties.ConfigurationProperties;import org.springframework.context.annotation.Bean;import org.springframework.context.annotation.ComponentScan;import org.springframework.core.io.support.PathMatchingResourcePatternResolver;import org.springframework.jdbc.datasource.DataSourceTransactionManager;import org.springframework.transaction.PlatformTransactionManager;import org.springframework.transaction.annotation.EnableTransactionManagement;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RestController;/** * sbm * Created by yadong.zhang on com.sbm.application * User：yadong.zhang * Date：2016/10/20 * Time：18:15 *//** * 1).@SpringBootApplication标注启动配置入口，run()方法会创建一个Spring应用上下文(Application Context)。 * SpringBoot通过启动内嵌的Servlet容器（默认tomcat）用来处理Http请求。 * 2).@RestController是特殊的Controller，他的返回值直接作为Http Response的Body部分返回给浏览器 * 3).Spring WebMvc框架会将Servlet容器里收到的Http请求根据路径分发到对应的@Controller下进行处理。 */@EnableAutoConfiguration@SpringBootApplication@ComponentScan//@RestControllerpublic class Applaction {    @RequestMapping("/")    public String index(){        return "Spring Boot Application...";    }    public static void main(String[] args) {        SpringApplication.run(Applaction.class, args);    }}
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3.编写控制类Controller

package com.sbm.controller;import com.sbm.service.IMessageService;import org.springframework.stereotype.Controller;import org.springframework.ui.Model;import org.springframework.web.bind.annotation.PathVariable;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.ResponseBody;import javax.annotation.Resource;import java.util.Date;import java.util.HashMap;import java.util.Map;/** * sbm * Created by yadong.zhang on com.sbm.controller * User：yadong.zhang * Date：2016/10/20 * Time：18:26 */@Controllerpublic class HelloController {    @RequestMapping("/hello/{name}")    public String hello(@PathVariable("name") String name, Model model) {        model.addAttribute("name", name);        model.addAttribute("age","25");        model.addAttribute("sex","man");        model.addAttribute("birth",new Date());        return "hello";    }    @RequestMapping("/json")    @ResponseBody    public Map<String,Object> json(){        Map<String,Object> map = new HashMap<String,Object>();        map.put("name","Flyat");        map.put("age","25");        map.put("sex","man");        return map;    }}
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4.测试页面访问看效果

 
 

前台页面渲染是使用的Freemarker模板，下节总结

SpringBoot 自动继承了thymeleaf、freemark、velocity三种模板技术，因为我项目中需要用来Freemark模板进行生成Java类所以，就整合了SB+F

1.配置pom文件，引入Freemarker

<dependency>   <groupId>org.springframework.boot</groupId>   <artifactId>spring-boot-starter-freemarker</artifactId></dependency>
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2.配置模板属性(application.properties)

# FREEMARKER (FreeMarkerAutoConfiguration)spring.freemarker.allow-request-override=falsespring.freemarker.allow-session-override=falsespring.freemarker.cache=falsespring.freemarker.charset=UTF-8spring.freemarker.check-template-location=truespring.freemarker.content-type=text/htmlspring.freemarker.enabled=truespring.freemarker.expose-request-attributes=falsespring.freemarker.expose-session-attributes=falsespring.freemarker.expose-spring-macro-helpers=truespring.freemarker.prefer-file-system-access=truespring.freemarker.suffix=.ftlspring.freemarker.template-loader-path=classpath:/templates/spring.freemarker.settings.template_update_delay=0spring.freemarker.settings.default_encoding=UTF-8spring.freemarker.settings.classic_compatible=truespring.freemarker.order=1
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3.编写Controller mapping

@RequestMapping("/hello/{name}")public String hello(@PathVariable("name") String name, Model model) {   model.addAttribute("name", name);   model.addAttribute("age","25");   model.addAttribute("sex","man");   model.addAttribute("birth",new Date());   return "hello";}
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4.编写hello.ftl页面模板

<!DOCTYPE html><html lang="en"><head>    <title>SpringBoot + Freemarker</title>    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /></head><body>Hello ${name}${age}${sex}<p>${birth?string("yyyy-MM-dd HH:mm:ss.sss")}</p></body></html>
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5.启动Application、访问hello/{name}

Hello zhangyd25man2016-10-21 10:51:26.026

1.构建测试数据库（Mysql）

CREATE TABLE `message` (  `ID` int(50) NOT NULL AUTO_INCREMENT COMMENT 'ID',  `NICK_NAME` varchar(50) DEFAULT NULL COMMENT '昵称',  `IP` varchar(50) DEFAULT NULL COMMENT 'IP',  `INSERT_TIME` datetime DEFAULT NULL COMMENT '提交时间',  PRIMARY KEY (`ID`)) ENGINE=InnoDB AUTO_INCREMENT=51 DEFAULT CHARSET=utf8;
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另附一个批量插入的存储过程

DELIMITER ;;CREATE DEFINER=`root`@`localhost` PROCEDURE `autoInsert`()BEGIN    DECLARE        i INT DEFAULT 0 ; -- 开始    SET autocommit = 0 ; -- 结束    WHILE (i < 1000) DO        REPLACE INTO message (            `ID`,            `NICK_NAME`,            `IP`,            `INSERT_TIME`        )    VALUE        (            i,            'zhangyd',            '127.0.0.1',            NOW()        ) ;    SET i = i + 1 ;    END    WHILE ;    SET autocommit = 1 ; COMMIT ;    END;;DELIMITER ;
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调用：call autoInsert

2.pom.xml配置

<?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.blog</groupId>    <artifactId>blog</artifactId>    <version>1.0-SNAPSHOT</version>    <parent>        <groupId>org.springframework.boot</groupId>        <artifactId>spring-boot-starter-parent</artifactId>        <version>1.4.0.RELEASE</version>        <relativePath/> <!-- lookup parent from repository -->    </parent>    <properties>        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>        <java.version>1.7</java.version>    </properties>    <dependencies>        <!--支持 Web 应用开发，包含 Tomcat 和 spring-mvc。 -->        <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>        <!--模板引擎-->      <!--  <dependency>            <groupId>org.springframework.boot</groupId>            <artifactId>spring-boot-starter-thymeleaf</artifactId>        </dependency>-->        <dependency>            <groupId>org.springframework.boot</groupId>            <artifactId>spring-boot-starter-freemarker</artifactId>        </dependency>        <!--springboot 集成Mybatis所需jar配置 start-->        <!--支持使用 JDBC 访问数据库-->        <dependency>            <groupId>org.springframework.boot</groupId>            <artifactId>spring-boot-starter-jdbc</artifactId>        </dependency>        <!--Mybatis-->        <dependency>            <groupId>org.mybatis</groupId>            <artifactId>mybatis-spring</artifactId>            <version>1.2.2</version>        </dependency>        <dependency>            <groupId>org.mybatis</groupId>            <artifactId>mybatis</artifactId>            <version>3.2.8</version>        </dependency>        <!--Mysql / DataSource-->        <dependency>            <groupId>org.apache.tomcat</groupId>            <artifactId>tomcat-jdbc</artifactId>        </dependency>        <dependency>            <groupId>mysql</groupId>            <artifactId>mysql-connector-java</artifactId>        </dependency>        <!--springboot 集成Mybatis所需jar配置 end-->        <!--Json Support-->        <dependency>            <groupId>com.alibaba</groupId>            <artifactId>fastjson</artifactId>            <version>1.1.43</version>        </dependency>        <!--springboot中修改完文件后自动reload的插件，修改完文件Ctrl + F9 Make一下就可以-->        <dependency>            <groupId>org.springframework</groupId>            <artifactId>springloaded</artifactId>            <version>1.2.3.RELEASE</version>        </dependency>        <!--springboot中修改完文件后自动reload的插件 end-->    </dependencies>    <build>        <plugins>            <plugin>                <groupId>org.springframework.boot</groupId>                <artifactId>spring-boot-maven-plugin</artifactId>                <dependencies>                    <dependency>                        <groupId>org.springframework</groupId>                        <artifactId>springloaded</artifactId>                        <version>1.2.3.RELEASE</version>                    </dependency>                </dependencies>            </plugin>        </plugins>    </build>    <!--配置远程仓库地址-->    <repositories>        <repository>            <id>spring-milestone</id>            <url>https://repo.spring.io/libs-release</url>        </repository>    </repositories>    <!--配置远程仓库地址-->    <pluginRepositories>        <pluginRepository>            <id>spring-milestone</id>            <url>https://repo.spring.io/libs-release</url>        </pluginRepository>    </pluginRepositories></project>
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3.application.properties文件配置

spring.datasource.url=jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf-8&zeroDateTimeBehavior=convertToNull&allowMultiQueries=truespring.datasource.username=rootspring.datasource.password=rootspring.datasource.driver-class-name=com.mysql.jdbc.Driver
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4.程序主函数(Applaction.java)

package com.blog;import org.apache.ibatis.session.SqlSessionFactory;import org.apache.tomcat.jdbc.pool.DataSource;import org.mybatis.spring.SqlSessionFactoryBean;import org.mybatis.spring.annotation.MapperScan;import org.mybatis.spring.mapper.MapperScannerConfigurer;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.EnableAutoConfiguration;import org.springframework.boot.autoconfigure.SpringBootApplication;import org.springframework.boot.context.properties.ConfigurationProperties;import org.springframework.context.annotation.Bean;import org.springframework.context.annotation.ComponentScan;import org.springframework.core.io.support.PathMatchingResourcePatternResolver;import org.springframework.jdbc.datasource.DataSourceTransactionManager;import org.springframework.transaction.PlatformTransactionManager;import org.springframework.transaction.annotation.EnableTransactionManagement;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RestController;/** * blog * Created by yadong.zhang on com.blog.application * User：yadong.zhang * Date：2016/10/20 * Time：18:15 *//** * 1).@SpringBootApplication标注启动配置入口，run()方法会创建一个Spring应用上下文(Application Context)。 * SpringBoot通过启动内嵌的Servlet容器（默认tomcat）用来处理Http请求。 * 2).@RestController是特殊的Controller，他的返回值直接作为Http Response的Body部分返回给浏览器 * 3).Spring WebMvc框架会将Servlet容器里收到的Http请求根据路径分发到对应的@Controller下进行处理。 */@EnableAutoConfiguration@SpringBootApplication@ComponentScan//指定扫描的mapper接口所在的包@MapperScan("com.blog.mapper")//启动注解事务管理@EnableTransactionManagement//@RestControllerpublic class Applaction {    private static final String TYPE_ALIASES_PACKAGE = "com.blog.model";    private static final String MAPPER_LOCATION = "classpath:/mybatis/*.xml";    @Bean    @Autowired    public SqlSessionFactory sqlSessionFactory(DataSource dataSource) throws Exception {        final SqlSessionFactoryBean sqlSessionFactoryBean = new SqlSessionFactoryBean();        sqlSessionFactoryBean.setDataSource(dataSource);        //mybatis.typeAliasesPackage：指定domain类的基包，即指定其在*Mapper.xml文件中可以使用简名来代替全类名（看后边的UserMapper.xml介绍）        sqlSessionFactoryBean.setTypeAliasesPackage(TYPE_ALIASES_PACKAGE);        /*            mybatis.mapperLocations：指定*Mapper.xml的位置            如果不加会报org.apache.ibatis.binding.BindingException: Invalid bound statement (not found): com.blog.mapper.MessageMapper.findMessageInfo异常            因为找不到*Mapper.xml，也就无法映射mapper中的接口方法。         */        sqlSessionFactoryBean.setMapperLocations(new PathMatchingResourcePatternResolver().getResources(MAPPER_LOCATION));        return sqlSessionFactoryBean.getObject();    }    public static void main(String[] args) {        SpringApplication.run(Applaction.class, args);    }}
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*注： 
sqlSessionFactoryBean.setMapperLocations(new PathMatchingResourcePatternResolver().getResources(MAPPER_LOCATION));这一句话一定要有，就是指定程序去哪儿查找Mapper.xml文件*

5.Mapper.java、Mapper.xml

package com.blog.mapper;import com.blog.model.Message;import org.springframework.stereotype.Repository;import java.util.List;/** * blog * Created by yadong.zhang on com.blog.mapper * User：yadong.zhang * Date：2016/10/21 * Time：11:19 */@Repositorypublic interface MessageMapper{    public List<Message> findMessageInfo();}
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<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd"><mapper namespace="com.blog.mapper.MessageMapper">    <resultMap id="message_map" type="com.blog.model.Message">        <id property="id" column="ID" jdbcType="INTEGER"></id>        <result property="ip" column="IP" jdbcType="VARCHAR"></result>        <result property="insertDate" column="INSERT_TIME" jdbcType="DATE"></result>        <result property="nickName" column="NICK_NAME" jdbcType="VARCHAR"></result>    </resultMap>    <select id="findMessageInfo" resultMap="message_map">        select * from message    </select></mapper>
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6.Controller(中间还有Service层以及其实现，此处略)

package com.blog.controller;import com.blog.service.IMessageService;import org.springframework.stereotype.Controller;import org.springframework.ui.Model;import org.springframework.web.bind.annotation.PathVariable;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.ResponseBody;import javax.annotation.Resource;import java.util.Date;import java.util.HashMap;import java.util.Map;/** * blog * Created by yadong.zhang on com.blog.controller * User：yadong.zhang * Date：2016/10/20 * Time：18:26 */@Controllerpublic class HelloController {    @Resource    private IMessageService messageService;    @RequestMapping("/message")    public String message(Model model){        model.addAttribute("messages", messageService.findMessageInfo());        return "message";    }}
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7.测试视图结果