第一个SpringBoot+MyBatis+JSR303项目

Maven的包基本就这些,现在大多数使用springboot的项目应该都是使用jdk1.8的吧，所以项目的jdk设置成1.8

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/maven-v4_0_0.xsd">  <modelVersion>4.0.0</modelVersion>  <groupId>springboot</groupId>  <artifactId>hellowold</artifactId>  <packaging>war</packaging>  <version>1.0-SNAPSHOT</version>  <name>hellowold Maven Webapp</name>  <url>http://maven.apache.org</url>  <parent>    <groupId>org.springframework.boot</groupId>    <artifactId>spring-boot-starter-parent</artifactId>    <version>1.5.6.RELEASE</version>  </parent>  <dependencies>    <dependency>      <groupId>junit</groupId>      <artifactId>junit</artifactId>      <scope>test</scope>    </dependency>    <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter -->    <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter -->    <dependency>      <groupId>org.springframework.boot</groupId>      <artifactId>spring-boot-starter</artifactId>    </dependency>    <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-web -->    <dependency>      <groupId>org.springframework.boot</groupId>      <artifactId>spring-boot-starter-web</artifactId>    </dependency>    <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-parent -->    <dependency>      <groupId>org.springframework.boot</groupId>      <artifactId>spring-boot-configuration-processor</artifactId>      <optional>true</optional>    </dependency>    <!-- https://mvnrepository.com/artifact/org.projectlombok/lombok-maven-plugin -->    <dependency>      <groupId>org.projectlombok</groupId>      <artifactId>lombok-maven-plugin</artifactId>      <version>1.16.18.1</version>    </dependency>    <dependency>      <groupId>org.mybatis.spring.boot</groupId>      <artifactId>mybatis-spring-boot-starter</artifactId>      <version>1.0.0</version>    </dependency>    <dependency>      <groupId>mysql</groupId>      <artifactId>mysql-connector-java</artifactId>      <scope>runtime</scope>    </dependency>    <dependency>      <groupId>com.alibaba</groupId>      <artifactId>druid</artifactId>      <version>1.0.18</version>    </dependency>    <dependency>      <groupId>org.hibernate</groupId>      <artifactId>hibernate-validator</artifactId>    </dependency>  </dependencies>  <properties>    <java.version>1.8</java.version>  </properties>  <build>    <finalName>hellowold</finalName>  </build></project>

配置方面是用的是yaml进行配置，所以需要引入spring-boot-configuration-processor包，配置看上去层次分明，更加直观

server: port: 80spring: datasource:   name: test   url: jdbc:mysql://192.168.1.105:3306/test   username: root   password: 123456   # 使用druid数据源   type: com.alibaba.druid.pool.DruidDataSource   driver-class-name: com.mysql.jdbc.Driver   filters: stat   maxActive: 20   initialSize: 1   maxWait: 60000   minIdle: 1   timeBetweenEvictionRunsMillis: 60000   minEvictableIdleTimeMillis: 300000   validationQuery: select 'x'   testWhileIdle: true   testOnBorrow: false   testOnReturn: false   poolPreparedStatements: true   maxOpenPreparedStatements: 20mybatis: mapperLocations: classpath:app/com/kenho/mapper/*Mapper.xml

SpringBoot的启动文件放的位置比较讲究，基本上把启动文件放在一个包下，然后项目的需要的各种累放在启动文件下的下级目录，这样启动的时候才能被扫描的到，所以控制类，服务类，dao类。就要添加上@RestController @Service @Repository注解，SpringBoot现在用REST风格比较多，所以使用的注解式@RestController他等于@ResponseBody+@Controller，其次就是控制类的bean注入最好是引用@Resource，因为@Resource是按照名字进行匹配，找不到匹配的bean才进行类型的匹配

package app.com.kenho.web.controller;import app.com.kenho.domain.Logininfo;import app.com.kenho.service.ILoginService;import app.com.kenho.service.impl.LoginServiceImpl;import org.springframework.validation.BindingResult;import org.springframework.validation.ObjectError;import org.springframework.validation.annotation.Validated;import org.springframework.web.bind.annotation.PathVariable;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod;import org.springframework.web.bind.annotation.RestController;import javax.annotation.Resource;import javax.naming.Binding;import javax.validation.Valid;import java.util.List;/** * Created by Stephanie on 2017/8/19. */@RestControllerpublic class indexController {    @Resource    private ILoginService loginServiceImpl;    @RequestMapping(value = "logininfo/{username}/{password}",method = RequestMethod.GET)    public Logininfo getlogininfo(@PathVariable("username")String username,@PathVariable("password")String password)    {        //loginServiceImpl.getLoginInfo("stephanie","81DC9BDB52D04DC20036DBD8313ED055");        return loginServiceImpl.getLoginInfo(username,password);    }    @RequestMapping(value = "logininfo",method = RequestMethod.POST)    public void valid(@Validated Logininfo logininfo, BindingResult bindingResult)    {        if(bindingResult.hasErrors())        {            List<ObjectError> list = bindingResult.getAllErrors();            StringBuilder stringBuilder = new StringBuilder();            for(ObjectError  error:list){                System.out.println("\n"+error.getDefaultMessage());            }        }        else        {            loginServiceImpl.insert(logininfo);        }    }}

获取数据

jsr303校验

项目git：https://github.com/tale2009/springboot