struts2根据主键更新某个列方法
public boolean ChangeReturnStatus(String id,int nn){
Connection conn=HibernateUtil.getSession().connection();
String sql = "update TableName set a='" + nn+ "' where TypeID='"+id+"'";
Statement stmt=null;
int i=0;
try {
stmt=conn.createStatement();
i= stmt.executeUpdate(sql);
if(i!=0){
return true;
}
} catch (Exception e) {
e.printStackTrace();
}
return false;
}