executeUpdate()下面的语句死活不执行

[怒吼的皮皮]

代码执行到pstmt.executeUpdate();往下就不执行了，即使写错误代码也不检查，求高手支招呀！~
public static void addChildCategory(int pid,String name,String descr) {
Connection conn=null;
PreparedStatement pstmt=null;
ResultSet rs = null;
try {
conn = DB.getConn();
conn.setAutoCommit(false);
rs=DB.executeQuery(conn, "select * from category where id ="+pid);
rs.next();
int parentGrade=rs.getInt("grade");
String sql = "insert into category values(null,?,?,?,?,?)";
pstmt=DB.getPStmt(conn, sql);
pstmt.setInt(1, pid);
pstmt.setString(2, name);
pstmt.setString(3, descr);
pstmt.setInt(4, 0);
pstmt.setInt(5, parentGrade+1);
pstmt.executeUpdate();
DB.executeQuery(conn, "update category set isleaf = 1 where id =16");
conn.commit();
} catch (Exception e) {
e.printStackTrace();
}
finally{
DB.closeRs(rs);
DB.closeStmt(pstmt);
DB.closeConn(conn);
}

}

[zark]

DB.executeQuery(conn, "update category set isleaf = 1 where id =16"); executeQuery 不应该是用来执行查询语句的么？？？

[南猿北蛰]

String sql = "insert into category values(null,?,?,?,?,?)"; 这里是否应该把具体字段写清楚，后面插入字段类型看是否一一对应。

[郑燕辉]

好像表被锁了

[怒吼的皮皮]

解决了，改成pstmt.executeUpdate( "update category set isleaf = 1 where id =16");就可以了，谢谢大家！

[灰太狼的太太太爷爷]

接个分吧。。。