Spingboot+Mybatis+Oracle项目配置

配置过程参考：

项目创建：http://how2j.cn/k/springboot/springboot-eclipse/1640.html

集成Mybatis使用Oracle：https://www.cnblogs.com/pangkang/p/8296666.html

1、创建MAVEN项目

1-1、菜单 -> File -> New -> Other -> Maven -> Maven -> Maven Project -> New Maven Project

groupId: com.公司名

artifactId: 项目名

name: 项目名

description: 项目名

1-2、配置pom.xml（这里附上本次项目完整的pom.xml）

注1：https://mvnrepository.com/ 下可查找需要的依赖

注2：仓库未提供ojdbc下载，自行下载ojdbc6.jar(https://www.oracle.com/technetwork/database/enterprise-edition/jdbc-112010-090769.html)。

进入ojdbc6.jar所在目录，cmd执行mvn install:install-file -DgroupId=com.oracle -DartifactId=ojdbc6 -Dversion=下载的版本号 -Dpackaging=jar -Dfile=ojdbc6.jar

（参考http://www.cnblogs.com/pangkang/p/8250014.html）

注3：经指教下面这一段可自动下载ojdbc：<dependency><groupId>com.oracle</groupId><artifactId>ojdbc6</artifactId><version>11.2.0.3</version></dependency>

注4：若不使用数据库连接，要去掉Mybatis的依赖

 <?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.hello</groupId>
     <artifactId>springboot</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>springboot</name>
     <description>springboot</description>
     <packaging>war</packaging>

     <parent>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-parent</artifactId>
         <version>1.5.9.RELEASE</version>
     </parent>

     <dependencies>
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-web</artifactId>
         </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-tomcat</artifactId>

         </dependency>
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
             <scope>test</scope>
         </dependency>

         <!-- servlet依赖. -->
         <dependency>
             <groupId>javax.servlet</groupId>
             <artifactId>javax.servlet-api</artifactId>
         </dependency>
         <dependency>
             <groupId>javax.servlet</groupId>
             <artifactId>jstl</artifactId>
         </dependency>

         <!-- tomcat的支持. -->
         <dependency>
             <groupId>org.apache.tomcat.embed</groupId>
             <artifactId>tomcat-embed-jasper</artifactId>
         </dependency>

         <!-- 支持热部署 -->
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-devtools</artifactId>
             <optional>true</optional> <!-- 这个需要为 true 热部署才有效 -->
         </dependency>

         <!-- Swagger2依赖 -->
         <dependency>
             <groupId>io.springfox</groupId>
             <artifactId>springfox-swagger2</artifactId>
             <version>2.6.1</version>
         </dependency>
         <dependency>
             <groupId>io.springfox</groupId>
             <artifactId>springfox-swagger-ui</artifactId>
             <version>2.6.1</version>
         </dependency>

         <!-- Mybatis -->
         <dependency>
             <groupId>org.mybatis.spring.boot</groupId>
             <artifactId>mybatis-spring-boot-starter</artifactId>
             <version>1.1.1</version>
         </dependency>

         <!-- oracle -->
         <dependency>
             <groupId>com.oracle</groupId>
             <artifactId>ojdbc6</artifactId>
             <version>11.2.0.4.0</version>
         </dependency>
     </dependencies>

     <properties>
         <java.version>1.8</java.version>
     </properties>

     <build>
         <plugins>
             <plugin>
                 <groupId>org.springframework.boot</groupId>
                 <artifactId>spring-boot-maven-plugin</artifactId>
             </plugin>
         </plugins>
     </build>

 </project>

1-3、创建包并创建Application.java主方法

运行这个方法就会启动tomcat,默认端口是8080

 package com.hello.springboot;

 import org.mybatis.spring.annotation.MapperScan;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;

 import springfox.documentation.swagger2.annotations.EnableSwagger2;

 @SpringBootApplication // 表示这是一个SpringBoot应用
 @EnableSwagger2 // 配置扫描mapper
 @MapperScan("com.hello.springboot.Dao") // 配置扫描mapper 修改项目后注意检查扫描地址
 public class Application {

     public static void main(String[] args) {
         SpringApplication.run(Application.class, args);
     }

 }

1-4、创建控制器包并创建控制器类

 package com.hello.springboot.controller;

 import java.util.ArrayList;

 import javax.annotation.Resource;

 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestMethod;
 import org.springframework.web.bind.annotation.RestController;

 import com.hello.springboot.Entyties.HelloEntity;
 import com.hello.springboot.Service.ControllerService;

 @RestController
 public class HelloController {
     @Resource
     private ControllerService service;

     @RequestMapping(value = "/hello", method = RequestMethod.GET)
     // @ResponseBody：以JSON格式返回到前端
     @ResponseBody
     public ArrayList<HelloEntity> GetHelloEntities() {
         return service.GetHelloEntities();// 访问数据库查询内容到前端
     }
 }

2、集成使用Mybatis、Oracle

2-1、在src/main/resources 目录下增加 application.properties文件。用于视图重定向jsp文件的位置，配置数据库地址及账号密码，指定sql语句位置

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

 spring.datasource.url = jdbc:oracle:thin:@HOST:POST:数据库名
 spring.datasource.username = admin
 spring.datasource.password = 123456

 spring.datasource.driver-class-name=oracle.jdbc.driver.OracleDriver

 mybatis.mapperLocations=classpath:mapper/*.xml

2-2、创建Service包并创建Service类

 package com.hello.springboot.Service;

 import java.util.ArrayList;

 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;

 import com.hello.springboot.Dao.HelloDao;
 import com.hello.springboot.Entyties.HelloEntity;

 @Service
 public class ControllerService {
     @Autowired
     private HelloDao dao;

     public ArrayList<HelloEntity> GetHelloEntities() {
         return dao.GetHello();
     }
 }

2-3、创建Dao包并创建Dao类

 package com.hello.springboot.Dao;

 import java.util.ArrayList;

 import com.hello.springboot.Entyties.HelloEntity;

 public interface HelloDao {
     public ArrayList<HelloEntity> GetHello();
 }

2-4、创建Entyties包并创建Entyties类

 package com.hello.springboot.Entyties;

 import java.io.Serializable;

 public class HelloEntity implements Serializable {
     private static final long serialVersionUID = -6556793741331167103L;
     private String str;

     public String getstr() {
         return str;
     }

     public void setstr(String str) {
         this.str = str;
     }

 }

2-5、在src/main/resources下创建mapper，mapper下创建sql.xml

 <?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.hello.spring.Dao.HelloDao">

 <!-- 修改项目后，注意检查namespace、resultType -->

     <select id="GetHello" resultType="com.hello.spring.Entyties.HelloEntity">
         SELECT 'Hello Spingboot' str FROM dual
     </select>
 </mapper>