從昨天下午到現在，一直在進(jìn)行ibatis環(huán)境下的單元測試，在測試中發(fā)現了一個(gè)奇怪的現象。
我們知道在sqlMap的insert語(yǔ)句中，一般需要一個(gè)bean類(lèi)來(lái)作為parameterClass的值，一般
來(lái)說(shuō)，這個(gè)bean只要一些簡(jiǎn)單的get/set方法就可以了，但是在測試中卻發(fā)現這樣一個(gè)問(wèn)題：
如果該bean類(lèi)繼承java.util.ArrayList，那么這時(shí)再進(jìn)行sqlMapClient的insert則會(huì )報錯。
（當然了，如果不繼承java.util.ArrayList類(lèi)就不會(huì )出錯，繼承其它類(lèi)也不會(huì )出錯）
下面將出現錯誤的環(huán)境數據列出來(lái)：
1，sqlMap
<insert id="simpleObjectTest" parameterClass="com.smartdot.galaxy.portal.resources.test.IbatisTestObject">
insert into zhangbo_test (id,name)
values(#id#,#name#)
</insert> |
2,
IbatisTestObject?.java
public class IbatisTestObject extends ArrayList {
private String id;
private String name;
public IbatisTestObject() {
super();
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
} |
3,junit test
...
IbatisTestObject obj=new IbatisTestObject();
obj.setId("33");
obj.setName("55");
sqlMap.insert("simpleObjectTest",obj);
... |
4,數據庫中字段id,name均為varchar2
5,出錯信息
com.ibatis.common.jdbc.exception.NestedSQLException:
--- The error occurred in com/smartdot/galaxy/portal/resources/test/resources_sql_map.xml.
--- The error occurred while preparing the mapped statement for execution.
--- Check the simpleObjectTest.
--- Check the parameter map.
--- Cause: java.lang.NumberFormatException: For input string: "i"
Caused by: java.lang.NumberFormatException: For input string: "i"
at com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.executeUpdate(GeneralStatement.java:90)
at com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.insert(SqlMapExecutorDelegate.java:442)
at com.ibatis.sqlmap.engine.impl.SqlMapSessionImpl.insert(SqlMapSessionImpl.java:85)
at com.ibatis.sqlmap.engine.impl.SqlMapClientImpl.insert(SqlMapClientImpl.java:57)
at com.smartdot.galaxy.portal.resources.test.ResourcesSqlMapTest.insertIbatisSimpleObj(ResourcesSqlMapTest.java:84)
at com.smartdot.galaxy.portal.resources.test.ResourcesSqlMapTest.test(ResourcesSqlMapTest.java:48)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at junit.framework.TestCase.runTest(TestCase.java:154)
at junit.framework.TestCase.runBare(TestCase.java:127)
at junit.framework.TestResult$1.protect(TestResult.java:106)
at junit.framework.TestResult.runProtected(TestResult.java:124)
at junit.framework.TestResult.run(TestResult.java:109)
at junit.framework.TestCase.run(TestCase.java:118)
at junit.framework.TestSuite.runTest(TestSuite.java:208)
at junit.framework.TestSuite.run(TestSuite.java:203)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:421)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:305)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:186)
Caused by: java.lang.NumberFormatException: For input string: "i"
（更多略） |
所以建議大家不要在Ibatis中的bean不要繼承java.util.ArrayList，而是使用復合模式。
