first commit

target/classes/generatorConfig.xml

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+<!DOCTYPE generatorConfiguration PUBLIC
+        "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"
+        "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">
+<generatorConfiguration>
+    <!-- MyBatis3Simple风格 -->
+    <context id="simple" targetRuntime="MyBatis3Simple">
+
+        <property name="javaFileEncoding" value="UTF-8"/>
+        <!--生成mapper.xml时覆盖原文件-->
+        <plugin type="org.mybatis.generator.plugins.UnmergeableXmlMappersPlugin"/>
+
+        <commentGenerator>
+            <!-- 是否去除自动生成的注释 true：是 ： false:否。 自动生成注释太啰嗦，可以编码扩展CommentGenerator -->
+            <property name="suppressAllComments" value="true"/>
+        </commentGenerator>
+
+        <!-- 数据库连接 -->
+        <jdbcConnection driverClass="org.postgresql.Driver"
+                        connectionURL="jdbc:postgresql://192.168.9.238:5432/longhuan?currentSchema=user"
+                        userId="postgres" password="123456">
+            <!-- 设置为true就只读取db_book下的表, 否则会优先读取到mysql的user表  -->
+            <property name="nullCatalogMeansCurrent" value="true"/>
+        </jdbcConnection>
+
+        <!-- 生成PO的包名和位置 -->
+        <javaModelGenerator targetPackage="com.longhuan.dao.pojo" targetProject="src/main/java"/>
+
+        <!-- 生成XML映射文件的包名和位置 -->
+        <sqlMapGenerator targetPackage="com.longhuan.dao.mapper" targetProject="src/main/resources"/>
+
+        <!-- 生成Mapper接口的包名和位置 -->
+        <javaClientGenerator type="XMLMAPPER" targetPackage="com.longhuan.dao.mapper" targetProject="src/main/java"/>
+
+        <!-- 要生成对应表配置 -->
+        <table tableName="user" domainObjectName="User" >
+            <!-- 自增主键列 -->
+            <generatedKey column="id" sqlStatement="MYSQL" identity="true"/>
+            <!-- tinyint映射为Integer -->
+            <columnOverride column="role" javaType="Integer" jdbcType="TINYINT"/>
+        </table>
+    </context>
+</generatorConfiguration>