ibatis批量插入对象
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正确写法：
dao
public Map saveWxcircleList_one(List<WxcircleDTO> wdto){ Map<String,Object> map = new HashMap<String,Object>(); List<WxcircleDTO> error = new ArrayList<WxcircleDTO>(); try { try { sqlMapClient.insert("wxcircle_sqlmap.insert_data", wdto); } catch (Exception e) { e.printStackTrace(); } map.put("error_list", error); return map; } catch (Exception e) { e.printStackTrace(); } return map; }sql-map.xml
<insert id="insert_data" parameterClass="java.util.List"> insert into wx_circle (id,username,createtime,private,contentDesc,sourceUserName, sourceNickName,publicUserName,statisticsData,title,description, mediaid,mediaurl,mediathumb,sourceNickName2,description2,contenturl, city,longitude,latitude,poiAddress,poiName)values <iterate conjunction="," > <![CDATA[ (#wdto[].id:int#, #wdto[].username:varchar#, #wdto[].createtime:datetime#, #wdto[].privates:int#, #wdto[].contentDesc:text#, #wdto[].sourceUserName:text#, #wdto[].sourceNickName:text#, #wdto[].publicUserName:varchar#, #wdto[].statisticsData:text#, #wdto[].title:text#, #wdto[].description:text#, #wdto[].mediaid:int#, #wdto[].mediaurl:text#, #wdto[].mediathumb:text#, #wdto[].sourceNickName2:varchar#, #wdto[].description2:text#, #wdto[].contenturl:text#, #wdto[].city:varchar#, #wdto[].longitude:float#, #wdto[].latitude:float#, #wdto[].poiAddress:text#, #wdto[].poiName:text#) ]]> </iterate> <!--下面这句必须加，不然会提示找不到SELECT select * from dual <![CDATA[ SELECT * FROM dual ]]>--> </insert>
说明：
wdto 为dao中list参数名，
<![CDATA[
SELECT * FROM dual
]]>-->
不需要加，加了会报错，不知道是不是因为mysql不支持，还有 insert all 貌似也不支持
其中要着重说明的就是
<iterate conjunction="," >
用示例来说明吧
<insert id="insert_data" parameterClass="java.util.List"> insert into wx_circle (id,username,createtime,private,contentDesc,sourceUserName, sourceNickName,publicUserName,statisticsData,title,description, mediaid,mediaurl,mediathumb,sourceNickName2,description2,contenturl, city,longitude,latitude,poiAddress,poiName)values <iterate conjunction="," open="(" close=")"> <![CDATA[ #wdto[].id:int#, #wdto[].username:varchar#, #wdto[].createtime:datetime#, #wdto[].privates:int#, #wdto[].contentDesc:text#, #wdto[].sourceUserName:text#, #wdto[].sourceNickName:text#, #wdto[].publicUserName:varchar#, #wdto[].statisticsData:text#, #wdto[].title:text#, #wdto[].description:text#, #wdto[].mediaid:int#, #wdto[].mediaurl:text#, #wdto[].mediathumb:text#, #wdto[].sourceNickName2:varchar#, #wdto[].description2:text#, #wdto[].contenturl:text#, #wdto[].city:varchar#, #wdto[].longitude:float#, #wdto[].latitude:float#, #wdto[].poiAddress:text#, #wdto[].poiName:text# ]]> </iterate> <!--下面这句必须加，不然会提示找不到SELECT select * from dual <![CDATA[ SELECT * FROM dual ]]>--> </insert>注意： <iterate conjunction="," open="(" close=")">
以前没用过，不理解。但是经过打印出来的sql，消化掉了
ConnectionDEBUG 2015-11-17 16:35:53,758 http-bio-8555-exec-3: {conn-100000} Preparing Statement: insert into wx_circle (id,username,createtime,private,contentDesc,sourceUserName, sourceNickName,publicUserName,statisticsData,title,description, mediaid,mediaurl,mediathumb,sourceNickName2,description2,contenturl, city,longitude,latitude,poiAddress,poiName)values ( ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ? , ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ? ) DEBUG 2015-11-17 16:35:55,985 http-bio-8555-exec-3: {pstm-100001} Executing Statement: insert into wx_circle (id,username,createtime,private,contentDesc,sourceUserName, sourceNickName,publicUserName,statisticsData,title,description, mediaid,mediaurl,mediathumb,sourceNickName2,description2,contenturl, city,longitude,latitude,poiAddress,poiName)values ( ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ? , ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ? ) DEBUG 2015-11-17 16:35:55,985 http-bio-8555-exec-3: {pstm-100001} Parameters: [5, null, null, 0, null, null, null, null, null, null, null, 0, null, null, null, null, null, null, 0.0, 0.0, null, null, 6, null, null, 0, null, null, null, null, null, null, null, 0, null, null, null, null, null, fdsa, 0.0, 0.0, null, null]DEBUG 2015-11-17 16:35:55,986 http-bio-8555-exec-3: {pstm-100001} Types: [java.lang.Integer, null, null, java.lang.Integer, null, null, null, null, null, null, null, java.lang.Integer, null, null, null, null, null, null, java.lang.Float, java.lang.Float, null, null, java.lang.Integer, null, null, java.lang.Integer, null, null, null, null, null, null, null, java.lang.Integer, null, null, null, null, null, java.lang.String, java.lang.Float, java.lang.Float, null, null]com.ibatis.common.jdbc.exception.NestedSQLException: --- The error occurred while applying a parameter map. --- Check the wxcircle_sqlmap.insert_data-InlineParameterMap. --- Check the statement (update failed). --- Cause: java.sql.SQLException: Column count doesn't match value count at row 1 at com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.executeUpdate(GeneralStatement.java:91) at com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.insert(SqlMapExecutorDelegate.java:447)从打印中来看 conjunction 是在每个参数后添加的， open是开头添加，close则是最后了。
要批量插入的数据，结果在values（）一个括号里面了，肯定不行了！！！
所以就修改下<iterate conjunction="," open="(" close=")"> ，需要按照插入的格式来insert into tables values (,,,,) (,,,,,)
<iterate conjunction="," > 改成这样就变成预想的了，数据也插入成功了。
遇到很多错，没看懂。。。。。
例如 ：
<insert id="insert_data" parameterClass="java.util.ArrayList"> insert into wx_circle (id,username,createtime,private,contentDesc,sourceUserName, sourceNickName,publicUserName,statisticsData,title,description, mediaid,mediaurl,mediathumb,sourceNickName2,description2,contenturl, city,longitude,latitude,poiAddress,poiName)values <iterate conjunction=""> (#[].id:int#, #[].username:varchar#, #[].createtime:datetime#, #[].privates:int#, #[].contentDesc:text#, #[].sourceUserName:text#, #[].sourceNickName:text#, #[].publicUserName:varchar#, #[].statisticsData:text#, #[].title:text#, #[].description:text#, #[].mediaid:int#, #[].mediaurl:text#, #[].mediathumb:text#, #[].sourceNickName2:varchar#, #description2:text#, #[].contenturl:text#, #[].city:varchar#, #[].longitude:float#, #[].latitude:float#, #[].poiAddress:text#, #[].poiName:text#) </iterate> </insert>
com.ibatis.common.jdbc.exception.NestedSQLException: --- The error occurred in com/paic/crawler/wx_friend_conent/dao/Wxcircle_sqlmap.xml. --- The error occurred while preparing the mapped statement for execution. --- Check the wxcircle_sqlmap.insert_data. --- Check the parameter map. --- Cause: com.ibatis.common.beans.ProbeException: Error getting ordinal list from JavaBean. Cause java.lang.StringIndexOutOfBoundsException: String index out of range: -1 at com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.executeUpdate(GeneralStatement.java:94) at com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.insert(SqlMapExecutorDelegate.java:447) at com.ibatis.sqlmap.engine.impl.SqlMapSessionImpl.insert(SqlMapSessionImpl.java:82) at com.ibatis.sqlmap.engine.impl.SqlMapClientImpl.insert(SqlMapClientImpl.java:59) at com.paic.crawler.wx_friend_conent.dao.WxcircleDao.saveWxcircleList_one(WxcircleDao.java:45) at com.paic.crawler.wx_friend_conent.action.WxCricleSpringAction.test(WxCricleSpringAction.java:129) 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:597) at org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:176) at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:436) at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:424) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:950) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:859) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:883) at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:781) at javax.servlet.http.HttpServlet.service(HttpServlet.java:621) at javax.servlet.http.HttpServlet.service(HttpServlet.java:728) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:83) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953){error_list=[]} at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1023) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:619)Caused by: com.ibatis.common.beans.ProbeException: Error getting ordinal list from JavaBean. Cause java.lang.StringIndexOutOfBoundsException: String index out of range: -1 at com.ibatis.common.beans.BaseProbe.getIndexedProperty(BaseProbe.java:86) at com.ibatis.common.beans.GenericProbe.getObject(GenericProbe.java:54) at com.ibatis.sqlmap.engine.exchange.ListDataExchange.getData(ListDataExchange.java:63) at com.ibatis.sqlmap.engine.mapping.parameter.BasicParameterMap.getParameterObjectValues(BasicParameterMap.java:132) at com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.executeUpdate(GeneralStatement.java:71) ... 38 moreCaused by: java.lang.StringIndexOutOfBoundsException: String index out of range: -1 at java.lang.String.substring(String.java:1937) at com.ibatis.common.beans.BaseProbe.getIndexedProperty(BaseProbe.java:50) ... 42 more连sql都没打印出来。。。。。。。
错误中很难看出来，后面修改的时候才发现，值中的参数少了#description2:text# ，每个参数前一定要加上 []. ！！！！！，不然会报上述错误。粗心啊！！！！
好了，就到这里了。
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