springboot整合mybatis及封装curd操作-配置文件
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1 配置文件 application.properties #server server.port=8090 server.address=127.0.0.1 server.session.timeout=1800 server.error.whitelabel.enabled=true #mybatis mybatis.config-locations=classpath:mybatis/mybatis-config.xml // mybatis配置文件 mybatis.mapper-locations=classpath:mybatis/mapper/*.xml //mapper映射文件
mybatis-config.xml <?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd"> <configuration> <settings> <!-- 只设置需要的,其他使用默认值 --> <!-- 开启缓存,默认就是开启的,2层开关,需要在Mapper文件中也指定 cache 标签才会真正使用缓存 --> <setting name="cacheEnabled" value="true"/> <!-- 在null时也调用 setter,适应于返回Map,3.2版本以上可用 --> <setting name="callSettersOnNulls" value="true"/> </settings> <typeAliases> <typeAlias alias="Integer" type="java.lang.Integer" /> <typeAlias alias="Long" type="java.lang.Long" /> <typeAlias alias="HashMap" type="java.util.HashMap" /> <typeAlias alias="LinkedHashMap" type="java.util.LinkedHashMap" /> <typeAlias alias="ArrayList" type="java.util.ArrayList" /> <typeAlias alias="LinkedList" type="java.util.LinkedList" /> </typeAliases> </configuration>
BaseMapper.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.sys.mapper.BaseMapper" > <!-- 添加数据 传入map map： 1.table 表名 2.columns 字段 （list） 3.values 字段值 （list） --> <insert id="save" parameterType="java.util.Map"> insert into ${table} <foreach collection="columns" item="item1" index="index" open="(" close=")" separator=","> ${item1} </foreach> values <foreach collection="values" item="item2" index="index" open="(" close=")" separator=","> #{item2} </foreach> </insert> <!-- 添加数据 返回主键 传入map map： 1.table 表名 2.columns 字段 （list） 3.values 字段值 （list） --> <insert id="saveRetkey" parameterType="java.util.Map" useGeneratedKeys="true" keyProperty="id"> insert into ${table} <foreach collection="columns" item="item" index="index" open="(" close=")" separator=","> ${item} </foreach> values <foreach collection="values" item="item" index="index" open="(" close=")" separator=","> #{item} </foreach> </insert> <!-- 修改 传入map map： 1.table 表名 2.columnvalues 字段-值 （map） 3.wheres 条件字段 (map) --> <update id="update" parameterType="java.util.Map"> update ${table} set <foreach collection="columnvalues.keys" item="item" index="key" separator=","> ${item} = #{columnvalues[${item}]} </foreach> <where> <if test="wheres != null"> 1=1 <foreach collection="wheres" item="whe" index="index"> <foreach collection="whe.keys" item="item" index="key"> <foreach collection="whe[item]" item="val"> <choose> <when test=‘val.toString() == "or" || val.toString() == "and"‘> <![CDATA[${val}]]> ${item} </when> <when test=‘val.toString() == "=" || val.toString() == "!=" || val.toString() == "<" || val.toString() == ">" || val.toString() == "<=" || val.toString() == ">=" || val.toString() == "like" || val.toString() == "is null" || val.toString() == "is not null"‘> <![CDATA[ ${val} ]]> </when> <otherwise> #{val} </otherwise> </choose> </foreach> </foreach> </foreach> </if> </where> </update> <!-- 删除数据 传入map map： 1.table 表名 2.wheres 条件字段 （map） --> <delete id="delete" parameterType="java.util.Map"> delete from ${table} <where> <if test="wheres != null"> 1=1 <foreach collection="wheres" item="whe" index="index"> <foreach collection="whe.keys" item="item" index="key"> <foreach collection="whe[item]" item="val"> <choose> <when test=‘val.toString() == "or" || val.toString() == "and"‘> <![CDATA[${val}]]> ${item} </when> <when test=‘val.toString() == "=" || val.toString() == "!=" || val.toString() == "<" || val.toString() == ">" || val.toString() == "<=" || val.toString() == ">=" || val.toString() == "like" || val.toString() == "is null" || val.toString() == "is not null"‘> <![CDATA[ ${val} ]]> </when> <otherwise> #{val} </otherwise> </choose> </foreach> </foreach> </foreach> </if> </where> </delete> <!-- 删除数据 传入map map： 1.table 表名 2.wheres 条件字段 （map） --> <delete id="deletes" parameterType="java.util.Map"> delete from ${table} <where> <if test="wheres != null"> ${idkey} in <foreach collection="wheres" item="item" index="index" open="(" close=")" separator=","> #{item} </foreach> </if> </where> </delete> <!-- 查询数据根据条件 一个数据 --> <select id="findByWhere" parameterType="java.util.Map" resultType="java.util.Map"> select distinct ${columns} from ${table} <where> <if test="wheres != null"> 1=1 <foreach collection="wheres" item="whe" index="index"> <foreach collection="whe.keys" item="item" index="key"> <foreach collection="whe[item]" item="val"> <choose> <when test=‘val.toString() == "or" || val.toString() == "and"‘> <![CDATA[${val}]]> ${item} </when> <when test=‘val.toString() == "=" || val.toString() == "!=" || val.toString() == "<" || val.toString() == ">" || val.toString() == "<=" || val.toString() == ">=" || val.toString() == "like" || val.toString() == "is null" || val.toString() == "is not null"‘> <![CDATA[ ${val} ]]> </when> <otherwise> #{val} </otherwise> </choose> </foreach> </foreach> </foreach> </if> </where> ${sort} limit 1 </select> <!-- 查询所有数据 --> <select id="findAll" parameterType="java.util.Map" resultType="java.util.Map"> select distinct ${columns} from ${table} ${sort} </select> <!-- 查询所有数据根据条件 --> <select id="findAllWhere" parameterType="java.util.Map" resultType="java.util.Map"> select distinct ${columns} from ${table} <where> <if test="wheres != null"> 1=1 <foreach collection="wheres" item="whe" index="index"> <foreach collection="whe.keys" item="item" index="key"> <foreach collection="whe[item]" item="val"> <choose> <when test=‘val.toString() == "or" || val.toString() == "and"‘> <![CDATA[${val}]]> ${item} </when> <when test=‘val.toString() == "=" || val.toString() == "!=" || val.toString() == "<" || val.toString() == ">" || val.toString() == "<=" || val.toString() == ">=" || val.toString() == "like" || val.toString() == "is null" || val.toString() == "is not null"‘> <![CDATA[ ${val} ]]> </when> <otherwise> #{val} </otherwise> </choose> </foreach> </foreach> </foreach> </if> </where> ${sort} </select> <!-- 分页查询 --> <select id="findPageModel" parameterType="java.util.Map" resultType="java.util.Map"> select distinct ${columns} from ${table} <where> <if test="wheres != null"> 1=1 <foreach collection="wheres" item="whe" index="index"> <foreach collection="whe.keys" item="item" index="key"> <foreach collection="whe[item]" item="val"> <choose> <when test=‘val.toString() == "or" || val.toString() == "and"‘> <![CDATA[${val}]]> ${item} </when> <when test=‘val.toString() == "=" || val.toString() == "!=" || val.toString() == "<" || val.toString() == ">" || val.toString() == "<=" || val.toString() == ">=" || val.toString() == "like" || val.toString() == "is null" || val.toString() == "is not null"‘> <![CDATA[ ${val} ]]> </when> <otherwise> #{val} </otherwise> </choose> </foreach> </foreach> </foreach> </if> </where> ${sort} limit #{pageNo},#{pageSize} </select> <!-- 总数据条数 --> <select id="findAllnum" parameterType="java.util.Map" resultType="int"> select count(a.id) as num from ${table} <where> <if test="wheres != null"> 1=1 <foreach collection="wheres" item="whe" index="index"> <foreach collection="whe.keys" item="item" index="key"> <foreach collection="whe[item]" item="val"> <choose> <when test=‘val.toString() == "or" || val.toString() == "and"‘> <![CDATA[${val}]]> ${item} </when> <when test=‘val.toString() == "=" || val.toString() == "!=" || val.toString() == "<" || val.toString() == ">" || val.toString() == "<=" || val.toString() == ">=" || val.toString() == "like" || val.toString() == "is null" || val.toString() == "is not null"‘> <![CDATA[ ${val} ]]> </when> <otherwise> #{val} </otherwise> </choose> </foreach> </foreach> </foreach> </if> </where> </select> <!-- 插入数据 直接传入sql --> <insert id="insertsql" parameterType="String"> <![CDATA[${sql}]]> </insert> <!-- 修改数据 直接传入sql --> <update id="updatesql" parameterType="String"> <![CDATA[${sql}]]> </update> <!-- 删除数据 直接传入sql --> <delete id="deletesql" parameterType="String"> <![CDATA[${sql}]]> </delete> <!-- 查询数据 直接传入sql --> <select id="selectsqlone" parameterType="String" resultType="java.util.Map"> <![CDATA[${sql}]]> </select> <!-- 查询数据 直接传入sql --> <select id="selectsqlall" parameterType="String" resultType="java.util.Map"> <![CDATA[${sql}]]> </select> <!-- 查询数据 直接传入sql --> <select id="selectsqlnum" parameterType="String" resultType="int"> <![CDATA[${sql}]]> </select> </mapper>
pom.xml <?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.example</groupId> <artifactId>smalldemo</artifactId> <version>2</version> <packaging>war</packaging> <name>SpringBootDemo</name> <description>Demo project for Spring Boot</description> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.5.4.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> <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-data-redis --> <!-- <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-redis</artifactId> <version>1.5.6.RELEASE</version> </dependency> --> <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-redis --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-redis</artifactId> <version>1.4.7.RELEASE</version> </dependency> <dependency> <groupId>org.mybatis.spring.boot</groupId> <artifactId>mybatis-spring-boot-starter</artifactId> <version>1.3.0</version> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>1.2.16</version> </dependency> <dependency> <groupId>com.alibaba</groupId> <artifactId>druid-spring-boot-starter</artifactId> <version>1.1.2</version> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <scope>runtime</scope> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> <dependency> <groupId>com.caucho</groupId> <artifactId>hessian</artifactId> <version>4.0.38</version> </dependency> <!--pagehelper--> <!-- <dependency> <groupId>com.github.pagehelper</groupId> <artifactId>pagehelper-spring-boot-starter</artifactId> <version>1.1.2</version> </dependency> --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-tomcat</artifactId> <scope>provided</scope> </dependency> <!-- 微信支付 --> <dependency> <groupId>com.github.wxpay</groupId> <artifactId>wxpay-sdk</artifactId> <version>0.0.3</version> </dependency> <dependency> <groupId>org.apache.httpcomponents</groupId> <artifactId>httpclient</artifactId> <version>4.5.3</version> </dependency> <dependency> <groupId>net.sourceforge.htmlunit</groupId> <artifactId>htmlunit</artifactId> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> </project>
Application.java /** * 项目启动类 * spring boot application只会扫描同一包下的类 * @author sys * */ @SpringBootApplication @EnableAutoConfiguration(exclude = { JacksonAutoConfiguration.class }) @ServletComponentScan @EnableTransactionManagement //加入事务注解 @MapperScan("com.sys.mapper") public class Application extends SpringBootServletInitializer{ //fastkson @Bean public HttpMessageConverters fastJsonHttpMessageConverters() { FastJsonHttpMessageConverter fastConverter = new FastJsonHttpMessageConverter(); FastJsonConfig fastJsonConfig = new FastJsonConfig(); fastJsonConfig.setSerializerFeatures(SerializerFeature.PrettyFormat); fastConverter.setFastJsonConfig(fastJsonConfig); HttpMessageConverter<?> converter = fastConverter; return new HttpMessageConverters(converter); } @Override protected SpringApplicationBuilder configure(SpringApplicationBuilder application) { return application.sources(Application.class); } public static void main(String[] args) { SpringApplication.run(Application.class, args); } }
下篇继续--java对mybatis的curd封装
要源码的联系 qq 2506715686
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