Java中 创建Oracle触发器的问题。

问题是这样的，现在需要做一个流程表单管理，新建表单的时候创建这个表单的数据表。
那创建触发器的时候。我拼接sql语句的 代码是这么写的

StringBuffer sql = new StringBuffer();
		String TRGName = "TRG_"+formKey;//触发器名
		sql.append("CREATE OR REPLACE TRIGGER "+TRGName+" ");
		sql.append("BEFORE INSERT ON "+formKey+" ");
		sql.append("FOR EACH ROW ");
		sql.append("BEGIN ");
		sql.append("  SELECT "+seqName+".NEXTVAL INTO:NEW."+PKName+" FROM DUAL; ");
		sql.append("END;");
		return sql.toString();

语句在plsql中运行是正常的。
但是执行的时候却报错了。
java.sql.SQLException: sql injection violation, TODO TRIGGER TRIGGER 

java.sql.SQLException: sql injection violation, TODO TRIGGER TRIGGER : CREATE OR REPLACE TRIGGER TRG_leave BEFORE INSERT ON leave FOR EACH ROW BEGIN   SELECT leave_ID.NEXTVAL INTO:NEW.ID FROM DUAL; END;
	at com.alibaba.druid.wall.WallFilter.check(WallFilter.java:617)
	at com.alibaba.druid.wall.WallFilter.statement_executeUpdate(WallFilter.java:482)
	at com.alibaba.druid.filter.FilterChainImpl.statement_executeUpdate(FilterChainImpl.java:2373)
	at com.alibaba.druid.filter.FilterAdapter.statement_executeUpdate(FilterAdapter.java:2486)
	at com.alibaba.druid.filter.FilterEventAdapter.statement_executeUpdate(FilterEventAdapter.java:327)
	at com.alibaba.druid.filter.FilterChainImpl.statement_executeUpdate(FilterChainImpl.java:2373)
	at com.alibaba.druid.proxy.jdbc.StatementProxyImpl.executeUpdate(StatementProxyImpl.java:225)
	at com.alibaba.druid.pool.DruidPooledStatement.executeUpdate(DruidPooledStatement.java:169)
	at com.qrsoft.jbpm.taskform.TaskForm.createTable(TaskForm.java:93)
	at com.qrsoft.jbpm.taskform.TaskForm.createTable(TaskForm.java:37)
	at com.qrsoft.jbpm.taskform.TaskFormController.createTable(TaskFormController.java:53)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at com.jfinal.core.ActionInvocation.invoke(ActionInvocation.java:55)
	at com.jfinal.ext.interceptor.SessionInViewInterceptor.intercept(SessionInViewInterceptor.java:44)
	at com.jfinal.core.ActionInvocation.invoke(ActionInvocation.java:51)
	at com.qrsoft.shiro.ShiroInterceptor.intercept(ShiroInterceptor.java:53)
	at com.jfinal.core.ActionInvocation.invoke(ActionInvocation.java:51)
	at com.jfinal.ext.plugin.shiro.ShiroInterceptor.intercept(ShiroInterceptor.java:52)
	at com.jfinal.core.ActionInvocation.invoke(ActionInvocation.java:51)
	at com.jfinal.core.ActionHandler.handle(ActionHandler.java:73)
	at com.jfinal.ext.handler.ContextPathHandler.handle(ContextPathHandler.java:47)
	at com.jfinal.plugin.druid.DruidStatViewHandler.handle(DruidStatViewHandler.java:58)
	at com.qrsoft.shiro.SessionHandler.handle(SessionHandler.java:14)
	at com.jfinal.ext.handler.FakeStaticHandler.handle(FakeStaticHandler.java:45)
	at com.qrsoft.jbase.jfinal.ext.xss.XssHandler.handle(XssHandler.java:35)
	at com.jfinal.core.JFinalFilter.doFilter(JFinalFilter.java:72)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1307)
	at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:61)
	at org.apache.shiro.web.servlet.AdviceFilter.executeChain(AdviceFilter.java:108)
	at org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:137)
	at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
	at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:66)
	at org.apache.shiro.web.servlet.AbstractShiroFilter.executeChain(AbstractShiroFilter.java:449)
	at org.apache.shiro.web.servlet.AbstractShiroFilter$1.call(AbstractShiroFilter.java:365)
	at org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90)
	at org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83)
	at org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:383)
	at org.apache.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.java:362)
	at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1307)
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:453)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137)
	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:560)
	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:231)
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1072)
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:382)
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:193)
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1006)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)
	at org.eclipse.jetty.server.Server.handle(Server.java:365)
	at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:485)
	at org.eclipse.jetty.server.AbstractHttpConnection.headerComplete(AbstractHttpConnection.java:926)
	at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:988)
	at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:635)
	at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:235)
	at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:82)
	at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:628)
	at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:52)
	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608)
	at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543)
	at java.lang.Thread.run(Unknown Source)
Caused by: com.alibaba.druid.sql.parser.ParserException: TODO TRIGGER TRIGGER
	at com.alibaba.druid.sql.parser.SQLStatementParser.parseCreate(SQLStatementParser.java:1193)
	at com.alibaba.druid.sql.dialect.oracle.parser.OracleStatementParser.parseStatementList(OracleStatementParser.java:176)
	at com.alibaba.druid.sql.parser.SQLStatementParser.parseStatementList(SQLStatementParser.java:106)
	at com.alibaba.druid.wall.WallProvider.checkInternal(WallProvider.java:613)
	at com.alibaba.druid.wall.WallProvider.check(WallProvider.java:572)
	at com.alibaba.druid.wall.WallFilter.check(WallFilter.java:605)
	... 64 more

查了很多资料都没找到问题，所以请大家看看。。