3 MybatisGenerator

pom.xml

@@ -121,6 +121,12 @@
       <artifactId>orika-core</artifactId>
       <version>1.5.4</version>
     </dependency>
+
+    <dependency>
+      <groupId>org.mybatis.generator</groupId>
+      <artifactId>mybatis-generator-core</artifactId>
+      <version>1.3.7</version>
+    </dependency>
   </dependencies>
 
   <build>
@@ -143,6 +149,21 @@
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-maven-plugin</artifactId>
       </plugin>
+
+      <!-- mybatis逆向工程 -->
+      <plugin>
+        <groupId>org.mybatis.generator</groupId>
+        <artifactId>mybatis-generator-maven-plugin</artifactId>
+        <version>1.3.7</version>
+        <dependencies>
+          <dependency>
+            <groupId>mysql</groupId>
+            <artifactId>mysql-connector-java</artifactId>
+            <version>5.1.21</version>
+          </dependency>
+        </dependencies>
+      </plugin>
+
     </plugins>
     <resources>
       <resource>

src/main/java/MybatisGenerator.java

+import org.mybatis.generator.api.MyBatisGenerator;
+import org.mybatis.generator.config.Configuration;
+import org.mybatis.generator.config.xml.ConfigurationParser;
+import org.mybatis.generator.internal.DefaultShellCallback;
+
+import java.io.InputStream;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * 代码方式生成逆向代码.MyBatis逆向工程.
+ * 不通过插件方式运行，因为自定义的注释类用插件方式会报错Cannot instantiate object of type com.zksy.szpt.config.MybatisGenerator
+ * 直接运行此类即可
+ */
+public class MybatisGenerator {
+    public static void main(String[] args) throws Exception {
+        //MBG执行谊程中的警告信息
+        List<String> warnings = new ArrayList<>();
+        //当生成的代码重复时,质盖原代码
+        boolean overwrite = true;
+        //读取MBG配置文件
+        InputStream is = MybatisGenerator.class.getResourceAsStream("./generatorConfig.xml");
+
+        ConfigurationParser cParse = new ConfigurationParser(warnings);
+        Configuration configuration = cParse.parseConfiguration(is);
+        DefaultShellCallback callback = new DefaultShellCallback(overwrite);
+        //创建MBG
+        MyBatisGenerator myBatisGenerator = new MyBatisGenerator(configuration, callback, warnings);
+        //执行生成代码
+        myBatisGenerator.generate(null);
+        //输出警告信息
+        for (String warning : warnings) {
+            System.out.println(warning);
+        }
+    }
+}
+

src/main/java/com/zksy/szpt/config/MybatisGenerator.java

+package com.zksy.szpt.config;
+
+import org.mybatis.generator.api.IntrospectedColumn;
+import org.mybatis.generator.api.IntrospectedTable;
+import org.mybatis.generator.api.dom.java.Field;
+import org.mybatis.generator.internal.DefaultCommentGenerator;
+
+
+import java.text.SimpleDateFormat;
+import java.util.Date;
+import java.util.Properties;
+
+/**
+ * 官方的默认不支持根据表注释生成实体类注释
+ * 通过自定义的方式根据表注释生成实体类注释
+ */
+public class MybatisGenerator extends DefaultCommentGenerator {
+    private Properties properties;
+    private Properties systemPro;
+    private boolean suppressDate;
+    private boolean suppressAllComments;
+    private String currentDateStr;
+
+    public MybatisGenerator() {
+        super();
+        properties = new Properties();
+        systemPro = System.getProperties();
+        suppressDate = false;
+        suppressAllComments = false;
+        currentDateStr = (new SimpleDateFormat("yyyy-MM-dd")).format(new Date());
+    }
+
+    @Override
+    public void addFieldComment(Field field, IntrospectedTable introspectedTable,
+                                IntrospectedColumn introspectedColumn) {
+        if (suppressAllComments) {
+            return;
+        }
+        StringBuilder sb = new StringBuilder();
+        field.addJavaDocLine("/**");
+        sb.append(" * ");
+        sb.append(introspectedColumn.getRemarks());
+        field.addJavaDocLine(sb.toString().replace(" ", " "));
+        field.addJavaDocLine(" */");
+    }
+}

src/main/java/generatorConfig.xml

+<?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>
+
+
+    <!--  mysql数据源配置文件路径  -->
+    <properties resource="mysql.properties"/>
+
+    <context id="DB2Tables" targetRuntime="MyBatis3">
+        <!--使用自定义主食类，将表注释写入实体类注释中-->
+        <commentGenerator type="com.zksy.szpt.config.MybatisGenerator">
+            <!--去掉mybatisgenerator自己的注释-->
+            <property name="suppressDate" value="true"/>
+            <property name="suppressAllComments" value="true"/>
+        </commentGenerator>
+
+        <!--配置数据库连接-->
+        <jdbcConnection driverClass="${jdbc.driver}"
+                        connectionURL="${db.url}"
+                        userId="${db.username}"
+                        password="${db.password}">
+            <property name="nullCatalogMeansCurrent" value="true"/>
+        </jdbcConnection>
+
+        <javaTypeResolver>
+            <property name="forceBigDecimals" value="false"/>
+        </javaTypeResolver>
+
+        <!--指定生成javabean的位置-->
+        <javaModelGenerator targetPackage="com.zksy.szpt.domain.po" targetProject=".\src\main\java">
+            <property name="enableSubPackages" value="false"/>
+            <property name="trimStrings" value="true"/>
+        </javaModelGenerator>
+
+        <!--指定sql的映射文件-->
+        <sqlMapGenerator targetPackage="mapper" targetProject=".\src\main\resources">
+            <property name="enableSubPackages" value="true"/>
+        </sqlMapGenerator>
+
+        <!--指定dao接口生成的位置，mapper接口-->
+        <javaClientGenerator type="XMLMAPPER" targetPackage="com.zksy.szpt.mapper" targetProject=".\src\main\java">
+            <property name="enableSubPackages" value="true"/>
+        </javaClientGenerator>
+
+        <!--table的生成策略-->
+        <!-- <table tableName="ALLTYPES" domainObjectName="Customer" >
+             <property name="useActualColumnNames" value="true"/>
+             <generatedKey column="ID" sqlStatement="DB2" identity="true" />
+             <columnOverride column="DATE_FIELD" property="startDate" />
+             <ignoreColumn column="FRED" />
+             <columnOverride column="LONG_VARCHAR_FIELD" jdbcType="VARCHAR" />
+         </table> -->
+        <!--可多写  要生成的表名-->
+        <table tableName="%" schema="szpt">
+        </table>
+
+
+    </context>
+</generatorConfiguration>
\ No newline at end of file

src/main/resources/application-dev.yml

 spring:
   datasource:
-    url: jdbc:mysql://192.168.168.110:3306/swagger?useUnicode=true&characterEncoding=UTF-8&useSSL=false&autoReconnect=true&failOverReadOnly=false&serverTimezone=GMT%2B8
+    url: jdbc:mysql://192.168.168.110:3306/szpt?useUnicode=true&characterEncoding=UTF-8&useSSL=false&autoReconnect=true&failOverReadOnly=false&serverTimezone=GMT%2B8
     username: root
     password: 123456
     driver-class-name: com.mysql.cj.jdbc.Driver

src/main/resources/generatorConfig.xml

+<?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>
+
+
+    <!--  mysql数据源配置文件路径  -->
+    <properties resource="mysql.properties"/>
+
+    <context id="DB2Tables" targetRuntime="MyBatis3">
+        <!--使用自定义主食类，将表注释写入实体类注释中-->
+        <commentGenerator type="com.zksy.szpt.config.MybatisGenerator">
+            <!--去掉mybatisgenerator自己的注释-->
+            <property name="suppressDate" value="true"/>
+            <property name="suppressAllComments" value="true"/>
+        </commentGenerator>
+
+        <!--配置数据库连接-->
+        <jdbcConnection driverClass="${jdbc.driver}"
+                        connectionURL="${db.url}"
+                        userId="${db.username}"
+                        password="${db.password}">
+        </jdbcConnection>
+
+        <javaTypeResolver >
+            <property name="forceBigDecimals" value="false" />
+        </javaTypeResolver>
+
+        <!--指定生成javabean的位置-->
+        <javaModelGenerator targetPackage="com.zksy.szpt.domain.po" targetProject=".\src\main\java">
+            <property name="enableSubPackages" value="false" />
+            <property name="trimStrings" value="true" />
+        </javaModelGenerator>
+
+        <!--指定sql的映射文件-->
+        <sqlMapGenerator targetPackage="mapper"  targetProject=".\src\main\resources">
+            <property name="enableSubPackages" value="true" />
+        </sqlMapGenerator>
+
+        <!--指定dao接口生成的位置，mapper接口-->
+        <javaClientGenerator type="XMLMAPPER" targetPackage="com.zksy.szpt.mapper"  targetProject=".\src\main\java">
+            <property name="enableSubPackages" value="true" />
+        </javaClientGenerator>
+
+        <!--table的生成策略-->
+        <!-- <table tableName="ALLTYPES" domainObjectName="Customer" >
+             <property name="useActualColumnNames" value="true"/>
+             <generatedKey column="ID" sqlStatement="DB2" identity="true" />
+             <columnOverride column="DATE_FIELD" property="startDate" />
+             <ignoreColumn column="FRED" />
+             <columnOverride column="LONG_VARCHAR_FIELD" jdbcType="VARCHAR" />
+         </table> -->
+        <!--可多写  要生成的表名-->
+        <table tableName="%" schema="szpt">
+        </table>
+
+
+
+    </context>
+</generatorConfiguration>
\ No newline at end of file

src/main/resources/mysql.properties

+#连接数据库的驱动
+jdbc.driver=com.mysql.jdbc.Driver
+
+#数据库连接字符串
+db.url=jdbc:mysql://192.168.168.110:3306/szpt?useUnicode=true&characterEncoding=UTF-8&useSSL=false&autoReconnect=true&failOverReadOnly=false&serverTimezone=GMT%2B8
+db.username=root
+db.password=123456
\ No newline at end of file