sql语句错误DB2 SQL Error: SQLCODE=-103, SQLSTATE=42...

报的异常

org.springframework.jdbc.BadSqlGrammarException: Hibernate operation: could not execute query; bad SQL grammar [select t.rule_code as ruleCode,t.run_time as runTime,t.err_code as errCode,t.err_msg as errMsg from  code_rep_rule_log t where 1=1and t.rule_code ='abc']; nested exception is com.ibm.db2.jcc.b.eo: DB2 SQL Error: SQLCODE=-103, SQLSTATE=42604, SQLERRMC=1and, DRIVER=3.53.95 com.ibm.db2.jcc.b.eo: DB2 SQL Error: SQLCODE=-103, SQLSTATE=42604, SQLERRMC=1and, DRIVER=3.53.95 at com.ibm.db2.jcc.b.bd.a(bd.java:676) at com.ibm.db2.jcc.b.bd.a(bd.java:60) at com.ibm.db2.jcc.b.bd.a(bd.java:127) at com.ibm.db2.jcc.b.gm.c(gm.java:2484) at com.ibm.db2.jcc.b.gm.d(gm.java:2461) at com.ibm.db2.jcc.b.gm.a(gm.java:1962) at com.ibm.db2.jcc.t4.db.g(db.java:138) at com.ibm.db2.jcc.t4.db.a(db.java:38) at com.ibm.db2.jcc.t4.t.a(t.java:32) at com.ibm.db2.jcc.t4.sb.h(sb.java:141) at com.ibm.db2.jcc.b.gm.bb(gm.java:1933) at com.ibm.db2.jcc.b.hm.ec(hm.java:2558) at com.ibm.db2.jcc.b.hm.e(hm.java:3259) at com.ibm.db2.jcc.b.hm.Rb(hm.java:583) at com.ibm.db2.jcc.b.hm.executeQuery(hm.java:557) at org.apache.commons.dbcp.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:92) at org.hibernate.jdbc.AbstractBatcher.getResultSet(AbstractBatcher.java:120) at org.hibernate.loader.Loader.getResultSet(Loader.java:1272) at org.hibernate.loader.Loader.doQuery(Loader.java:391) at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:218) at org.hibernate.loader.Loader.doList(Loader.java:1593) at org.hibernate.loader.Loader.list(Loader.java:1577) at org.hibernate.loader.custom.CustomLoader.list(CustomLoader.java:112) at org.hibernate.impl.SessionImpl.listCustomQuery(SessionImpl.java:1414) at org.hibernate.impl.SQLQueryImpl.list(SQLQueryImpl.java:153) at com.krm.dao.hibernate.BaseDAOHibernate$6.doInHibernate(BaseDAOHibernate.java:492) at org.springframework.orm.hibernate3.HibernateTemplate.execute(HibernateTemplate.java:356) at org.springframework.orm.hibernate3.HibernateTemplate.execute(HibernateTemplate.java:329) at com.krm.dao.hibernate.BaseDAOHibernate.list(BaseDAOHibernate.java:495) at com.krm.dao.hibernate.BaseDAOHibernate.list(BaseDAOHibernate.java:457) at com.krm.dao.hibernate.BaseDAOHibernate.list(BaseDAOHibernate.java:452) at com.krm.standard.applog.dao.hibernate.AppLogDAOHibernate.getAppLogByCT(AppLogDAOHibernate.java:56) at com.krm.standard.applog.service.impl.AppLogServiceImpl.getAppLogByCT(AppLogServiceImpl.java:27) 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.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:292) at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:155) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:122) at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:144) at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:174) at $Proxy103.getAppLogByCT(Unknown Source) at com.krm.standard.applog.web.action.ApplicationLogAction.list(ApplicationLogAction.java:31) 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.apache.struts.actions.DispatchAction.dispatchMethod(DispatchAction.java:276) at com.krm.slsint.common.web.action.BaseAction.checkSessionTimeOut(BaseAction.java:930) at com.krm.slsint.common.web.action.BaseAction.execute(BaseAction.java:194) at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:421) at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:226) at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1164) at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:415) at javax.servlet.http.HttpServlet.service(HttpServlet.java:710) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at com.krm.slsint.common.web.filter.RequestFilter.doFilter(RequestFilter.java:84) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:75) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:228) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:216) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:634) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:445) at java.lang.Thread.run(Thread.java:619)

A:原生态sql语句串接时注意空格
String sql = "select t.rule_code as ruleCode,t.run_time as runTime,t.err_code as errCode,t.err_msg as errMsg from  code_rep_rule_log t where 1=1" ;

//对单个条件进行判断串接
if(!"".equals(ruleCode))
{
//and前面需要有空格
//sql +="and t.rule_code ='"+ruleCode+"'";//问题出在这一行，因为是要和前面的sql串接，所以and前面需要空格
sql +=" and t.rule_code ='"+ruleCode+"'";
}


}