通用Mapper 0.2.0: java.lang.AssertionError: Expected exception: org.apache.ibatis.exceptions.PersistenceException

[pi408637535]

你好，由于对于通用Mapper我可能看不太懂,所以我决定先来看这个低版本。 我的数据库是Mysql。 配置文件：

public class Country { @Id @GeneratedValue(strategy = GenerationType.IDENTITY) private Integer id; private String countryname; private String countrycode; }

Reader reader = Resources.getResourceAsReader("mybatis-config.xml"); sqlSessionFactory = new SqlSessionFactoryBuilder().build(reader); reader.close(); //创建数据库 SqlSession session = null; try { session = sqlSessionFactory.openSession(); } finally { if (session != null) { session.close(); } } ... }

country 结构 CREATE TABLE country ( id int(11) unsigned NOT NULL AUTO_INCREMENT, countryname varchar(32) DEFAULT NULL, countrycode varchar(2) DEFAULT 'HH', PRIMARY KEY (id) ) ENGINE=InnoDB AUTO_INCREMENT=188

Mybatis日志： DEBUG [main] - Setting autocommit to false on JDBC Connection [com.mysql.jdbc.JDBC4Connection@47faa49c] DEBUG [main] - ==> Preparing: INSERT INTO COUNTRY (ID,COUNTRYNAME,COUNTRYCODE) VALUES ( ?,?,? ) DEBUG [main] - ==> Parameters: null, yyy(String), t(String) DEBUG [main] - <== Updates: 1 DEBUG [main] - ==> Executing: SELECT LAST_INSERT_ID() TRACE [main] - <== Columns: LAST_INSERT_ID() TRACE [main] - <== Row: 190 DEBUG [main] - <== Total: 1 DEBUG [main] - Rolling back JDBC Connection [com.mysql.jdbc.JDBC4Connection@47faa49c] DEBUG [main] - Resetting autocommit to true on JDBC Connection [com.mysql.jdbc.JDBC4Connection@47faa49c] DEBUG [main] - Closing JDBC Connection [com.mysql.jdbc.JDBC4Connection@47faa49c] DEBUG [main] - Returned connection 1207608476 to pool. Disconnected from the target VM, address: '127.0.0.1:55572', transport: 'socket'

java.lang.AssertionError: Expected exception: org.apache.ibatis.exceptions.PersistenceException

我是真没明白这个错误是怎么发生了，希望能得到答复

[abel533]

看不出来原因