mybatis逆向工程自動生成
阿新 • • 發佈：2019-01-31
MAVEN專案使用mybatis逆向生成:
首先新增pom依賴:
<dependencies>
<dependency>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-core</artifactId>
<version>1.3.6</version>
</dependency>
<dependency>
<groupId 編寫xml檔案，連線資料庫：
<?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"> 編寫xml檔案，與資料庫連線的資訊和生成檔案的位置
<?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>
<!-- <context id="testTables" targetRuntime="MyBatis3"> <commentGenerator>
是否去除自動生成的註釋 true：是 ： false:否 <property name="suppressAllComments" value="true"
/> </commentGenerator> 資料庫連線的資訊：驅動類、連線地址、使用者名稱、密碼 <jdbcConnection driverClass="com.mysql.jdbc.Driver"
connectionURL="jdbc:mysql:///city?useUnicode=true&characterEncoding=utf-8"
userId="root" password="123456"> </jdbcConnection> -->
<!-- 一個數據庫一個context -->
<context id="testTables">
<!-- 註釋 -->
<commentGenerator>
<property name="suppressAllComments" value="true" /><!-- 是否取消註釋 -->
<property name="suppressDate" value="true" /> <!-- 是否生成註釋代時間戳 -->
</commentGenerator>
<!-- jdbc連線 -->
<jdbcConnection driverClass="com.mysql.jdbc.Driver"
connectionURL="jdbc:mysql://192.xxx.1.109:3306/chuuw" userId="root" password="123456" />
<!-- 預設false，把JDBC DECIMAL 和 NUMERIC 型別解析為 Integer，為 true時把JDBC DECIMAL
和 NUMERIC 型別解析為java.math.BigDecimal -->
<javaTypeResolver>
<property name="forceBigDecimals" value="false" />
</javaTypeResolver>
<!-- targetProject:生成PO類的位置 -->
<javaModelGenerator
targetPackage="com.xxx.entity" targetProject=".\src\main\java">
<!-- enableSubPackages:是否讓schema作為包的字尾 -->
<property name="enableSubPackages" value="false" />
<!-- 從資料庫返回的值被清理前後的空格 -->
<property name="trimStrings" value="true" />
</javaModelGenerator>
<!-- targetProject:mapper對映檔案生成的位置 -->
<sqlMapGenerator targetPackage="com.xxx..dao"
targetProject=".\src\main\java">
<!-- enableSubPackages:是否讓schema作為包的字尾 -->
<property name="enableSubPackages" value="false" />
</sqlMapGenerator>
<!-- targetPackage：mapper介面生成的位置 -->
<javaClientGenerator type="XMLMAPPER"
targetPackage="com.xxx.dao" targetProject=".\src\main\java">
<!-- enableSubPackages:是否讓schema作為包的字尾 -->
<property name="enableSubPackages" value="false" />
</javaClientGenerator>
<!-- 指定資料庫表 -->
<table schema="" tableName="tb_content"></table>
<table schema="" tableName="tb_content_category"></table>
<table schema="" tableName="tb_item"></table>
<table schema="" tableName="tb_item_cat"></table>
<table schema="" tableName="tb_item_desc"></table>
</context>
</generatorConfiguration>
編寫啟動配置檔案的main方法：
package GenMain;
import java.io.File;
import java.io.IOException;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
import org.mybatis.generator.api.MyBatisGenerator;
import org.mybatis.generator.config.Configuration;
import org.mybatis.generator.config.xml.ConfigurationParser;
import org.mybatis.generator.exception.InvalidConfigurationException;
import org.mybatis.generator.exception.XMLParserException;
import org.mybatis.generator.internal.DefaultShellCallback;
/*public class GenMain {
public static void main(String[] args) {
List<String> warnings = new ArrayList<String>();
boolean overwrite = true;
String genCfg = "src/main/resources/generator.xml";
File configFile = new File(GenMain.class.getResource(genCfg).getFile());
ConfigurationParser cp = new ConfigurationParser(warnings);
Configuration config = null;
try {
config = cp.parseConfiguration(configFile);
} catch (IOException e) {
e.printStackTrace();
} catch (XMLParserException e) {
e.printStackTrace();
}
DefaultShellCallback callback = new DefaultShellCallback(overwrite);
MyBatisGenerator myBatisGenerator = null;
try {
myBatisGenerator = new MyBatisGenerator(config, callback, warnings);
} catch (InvalidConfigurationException e) {
e.printStackTrace();
}
try {
myBatisGenerator.generate(null);
} catch (SQLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
} */
public class GenMain {
public void generator() throws Exception{
List<String> warnings = new ArrayList<String>();
boolean overwrite = true;
//指定 逆向工程配置檔案(全路徑)
File configFile = new File("src\\test\\resources\\generator.xml");
ConfigurationParser cp = new ConfigurationParser(warnings);
Configuration config = cp.parseConfiguration(configFile);
DefaultShellCallback callback = new DefaultShellCallback(overwrite);
MyBatisGenerator myBatisGenerator = new MyBatisGenerator(config,
callback, warnings);
myBatisGenerator.generate(null);
}
public static void main(String[] args) throws Exception {
try {
GenMain generatorSqlmap = new GenMain();
generatorSqlmap.generator();
} catch (Exception e) {
e.printStackTrace();
}
}
}以上就是逆向工程自動生成總結！