springboot相关配置
博客搬家：springboot相关配置
配置mybatis
- application.properties中配置
mybatis.mapper-location=classpath:com/leida/mapper/*.xml
#配置数据库连接信息
spring.datasource.username=root
spring.datasource.password=123456
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.url=jdbc:mysql://127.0.0.1:3307/mls?useUnicode=true&characterEncoding=utf8&useSSL=false
- pom.xml中添加以下配置
<!-- 继承springboot的父级项目依赖 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.0.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<!-- 属性配置 -->
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<!-- 开发web项目的起步依赖 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!--加载mybatis整合springboot-->
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>1.3.2</version>
</dependency>
<!--mysql的jdbc驱动包-->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
</dependencies>
- 编写generatorConfig.xml，自动生成代码的根文件
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE generatorConfiguration
PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"
"http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">
<generatorConfiguration>
<!--导入属性配置 -->
<properties resource="application.properties"></properties>
<!--指定特定数据库的jdbc驱动jar包的位置 -->
<classPathEntry location="C:\Users\leida\.m2\repository\mysql\mysql-connector-java\8.0.18\mysql-connector-java-8.0.18.jar"/>
<context id="default" targetRuntime="MyBatis3">
<!-- optional，旨在创建class时，对注释进行控制 -->
<commentGenerator>
<property name="suppressDate" value="true" />
</commentGenerator>
<!--jdbc的数据库连接 -->
<jdbcConnection driverClass="com.mysql.jdbc.Driver" connectionURL="jdbc:mysql://127.0.0.1:3307/mls" userId="root" password="123456">
</jdbcConnection>
<!-- 非必需，类型处理器，在数据库类型和java类型之间的转换控制-->
<javaTypeResolver >
<property name="forceBigDecimals" value="false" />
</javaTypeResolver>
<!-- Model模型生成器,用来生成含有主键key的类，记录类 以及查询Example类
targetPackage 指定生成的model生成所在的包名
targetProject 指定在该项目下所在的路径
-->
<javaModelGenerator targetPackage="com.leida.model" targetProject="src/main/java">
<!-- 是否对model添加 构造函数 -->
<property name="constructorBased" value="true"/>
<!-- 是否允许子包，即targetPackage.schemaName.tableName -->
<property name="enableSubPackages" value="false"/>
<!-- 建立的Model对象是否 不可改变 即生成的Model对象不会有 setter方法，只有构造方法 -->
<property name="immutable" value="true"/>
<!-- 给Model添加一个父类 -->
<!-- <property name="rootClass" value="com.foo.louis.Hello"/>-->
<!-- 是否对类CHAR类型的列的数据进行trim操作 -->
<property name="trimStrings" value="true"/>
</javaModelGenerator>
<!--Mapper映射文件生成所在的目录 为每一个数据库的表生成对应的SqlMap文件 -->
<sqlMapGenerator targetPackage="com.leida.mapper" targetProject="src/main/java">
<property name="enableSubPackages" value="false"/>
</sqlMapGenerator>
<!-- 客户端代码，生成易于使用的针对Model对象和XML配置文件 的代码
type="ANNOTATEDMAPPER",生成Java Model 和基于注解的Mapper对象
type="MIXEDMAPPER",生成基于注解的Java Model 和相应的Mapper对象
type="XMLMAPPER",生成SQLMap XML文件和独立的Mapper接口
-->
<javaClientGenerator targetPackage="com.leida.mapper" targetProject="src/main/java" type="MIXEDMAPPER">
<property name="enableSubPackages" value=""/>
<!--
定义Maper.java 源代码中的ByExample() 方法的可视性，可选的值有：
public;
private;
protected;
default
注意：如果 targetRuntime="MyBatis3",此参数被忽略
-->
<property name="exampleMethodVisibility" value=""/>
<!--
方法名计数器
Important note: this property is ignored if the target runtime is MyBatis3.
-->
<property name="methodNameCalculator" value=""/>
<!--
为生成的接口添加父接口
-->
<property name="rootInterface" value=""/>
</javaClientGenerator>
<!-- 要生成的表 tableName是数据库中的表名或视图名 domainObjectName是实体类名-->
<table tableName="test"
domainObjectName="Test"
enableCountByExample="false"
enableUpdateByExample="false"
enableDeleteByExample="false"
enableSelectByExample="false"
selectByExampleQueryId="false">
</table>
</context>
</generatorConfiguration>
- 在pom.xml中添加自动生成代码的插件，在build中添加如下代码
<plugins>
<!--mybatis代码自动生成插件-->
<plugin>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-maven-plugin</artifactId>
<version>1.3.6</version>
<configuration>
<!--配置文件位置-->
<configurationFile>src/main/resources/generatorConfig.xml</configurationFile>
<verbose>true</verbose>
<overwrite>true</overwrite>
</configuration>
</plugin>
</plugins>
- 在maven中generate生成代码，会生成model的类和接口和mapper
- 添加controller包，添加controller
package com.leida.controller;
import com.leida.service.TestDataService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
public class TestController {
@Autowired
private TestDataService testDataService;
@GetMapping("/testData")
public Object testData () {
return testDataService.getAllTestData();
}
}
- 添加service包，里面添加接口和impl包，impl包中添加实现接口的类
#接口
package com.leida.service;
import com.leida.model.Test;
import java.util.List;
public interface TestDataService {
public List<Test> getAllTestData();
}
实现上面接口的类
package com.leida.service.impl;
import com.leida.mapper.TestMapper;
import com.leida.model.Test;
import com.leida.service.TestDataService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.List;
@Service
public class TestDataServiceImpl implements TestDataService {
@Autowired
private TestMapper testMapper;
@Override
public List<Test> getAllTestData() {
return testMapper.getAllData();
}
}
- Mapper中添加底层方法
List<Test> getAllData();
- 编写TestMapper.xml，与Mapper.class中的方法名相对应
<!-- 查询所有数据-->
<select id="getAllData" resultMap="BaseResultMap">
<!--
WARNING - @mbg.generated
This element is automatically generated by MyBatis Generator, do not modify.
-->
select
*
from test
</select>
</mapper>
- 测试还需要在pom.xml中，plugins下面添加如下配置，主要是第一个，否则xml无法编译进文件夹
<resources>
<resource>
<directory>src/main/resources</directory>
<includes>
<include>**/**</include>
</includes>
<!-- 开启过滤，用指定的参数替换directory下的文件中的参数 -->
<filtering>false</filtering>
</resource>
<resource>
<directory>src/main/webapp</directory>
<targetPath>META-INF/resources</targetPath>
<includes>
<include>**/**</include>
</includes>
</resource>
<resource>
<directory>src/main/java</directory>
<excludes>
<exclude>
**/*.java
</exclude>
</excludes>
</resource>
</resources>
集成jsp
- pom.xml需要额外这些依赖，在dependencies中
<!-- 测试的起步依赖 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
</exclusions>
</dependency>
<!-- 使用jsp引擎，springboot内置的tomcat没有此依赖 -->
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-jasper</artifactId>
</dependency>
<!-- 添加servlet依赖模块 -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<scope>provided</scope>
</dependency>
<!-- 添加jstl标签库依赖模块 -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
</dependency>
<!--添加tomcat依赖模块.-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>provided</scope>
</dependency>
- resources中的application.properties
server.port=8080
#上下文
server.servlet.context-path=/mls
#jsp访问路径
spring.mvc.view.prefix=/WEB-INF/jsp/
spring.mvc.view.suffix=.jsp
- main下面建webapp/WEB-INF，下面建jsp文件
- controller中建jspcontroller
package com.leida.springboot.mls.controller;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
@Controller
public class JSPController {
@GetMapping("/")
public String login(){
return "index";
}
}
