解决运行mybatis-generator生成java.sql.SQLException: Cannot connect to database (possibly bad driver/URL co

一、异常描述

在eclipse中通过mybatis-generator生成dao、mappers及model代码时（步骤参考“通过mybatis-generator-core工具自…”页面），报“java.sql.SQLException: Cannot connect to database (possibly bad driver/URL combination)”异常，错误轨迹如下

java.sql.SQLException: Cannot connect to database (possibly bad driver/URL combination)
at org.mybatis.generator.internal.db.ConnectionFactory.getConnection(ConnectionFactory.java:71)
at org.mybatis.generator.config.Context.getConnection(Context.java:498)
at org.mybatis.generator.config.Context.introspectTables(Context.java:408)
at org.mybatis.generator.api.MyBatisGenerator.generate(MyBatisGenerator.java:221)
at org.mybatis.generator.api.MyBatisGenerator.generate(MyBatisGenerator.java:132)
at com.xwood.gen.GeneratorExecuter.generator(GeneratorExecuter.java:24)
at com.xwood.gen.GeneratorExecuter.main(GeneratorExecuter.java:29)

二、解决办法

1.从异常描述信息直接可以看出是generator.xml的jdbcConnection配置文件配错了

2.关于jdbcConnection配置，mysql的配置应该如下,"connectionURL=“jdbc:mysql://192.168.1.9:3306/test”

<jdbcConnection driverClass="com.mysql.jdbc.Driver"
connectionURL="jdbc:mysql://192.168.1.9:3306/test"
userId="root"
password="123456">
</jdbcConnection>

3.详细generator.xml参考如下

<?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>

<!-- classPathEntry:数据库的JDBC驱动-->
<classPathEntry location="C:\WS\mybatis-generator-core-1.3.1\lib\mysql-connector-java-3.2.0-alpha-bin.jar" />

<context id="DB2Tables" targetRuntime="MyBatis3">

<!-- 去除自动生成的注释 -->
<commentGenerator><property name="suppressAllComments" value="true" /></commentGenerator>

<jdbcConnection driverClass="com.mysql.jdbc.Driver"
connectionURL="jdbc:mysql://192.168.1.9:3306/test"

userId="root"
password="123456">
</jdbcConnection>

<javaTypeResolver >
<property name="forceBigDecimals" value="false" />
</javaTypeResolver>

<!-- targetProject:自动生成model代码的位置 -->
<javaModelGenerator targetPackage="com.xwood.gen.model" targetProject="C:\WS\NJ\project\xwood-project\JavaTest\src\">
<property name="enableSubPackages" value="true" />
<property name="trimStrings" value="true" />
</javaModelGenerator>

<!-- targetProject:自动生成mappers代码的位置 -->
<sqlMapGenerator targetPackage="com.xwood.gen.mappers"  targetProject="C:\WS\NJ\project\xwood-project\JavaTest\src\">
<property name="enableSubPackages" value="true" />
</sqlMapGenerator>

<!-- targetProject:自动生成dao代码的位置 -->
<javaClientGenerator type="XMLMAPPER" targetPackage="com.xwood.gen.dao"  targetProject="C:\WS\NJ\project\xwood-project\JavaTest\src\">
<property name="enableSubPackages" value="true" />
</javaClientGenerator>

<!-- tableName:用于自动生成代码的数据库表;domainObjectName:对应于数据库表的javaBean类名-->
<table  tableName="guser" domainObjectName="Guser" >

</table>

</context>

</generatorConfiguration>

• 点赞
• 收藏
• 分享
• 文章举报