java - Hibernate插入SQL语句不起作用

Question

我正在尝试执行hibernate插入sql查询

String sqlQuery = "insert into examschedule (class_id,examtype_id,subject_id,examdate,start_time,end_time,messagetype_id,createddate) values";
   String sql1 =sql1+ "("+ classes.getId()+","+
                            exType.getId()+","+
                            subjectName.getId()+","+
                            "'"+sqlDate+"'"+","+"'"+startTime+"'"+","+"'"+endTime+"'"+","+msgType.getId()+","+"'"+sqlTimestamp+"'"+");";

 System.out.println(sqlQuery+sql1);
                query = session.createSQLQuery(sqlQuery);
                int result = query.executeUpdate();

但是，当我尝试在 mysql 控制台中执行相同的查询时，我遇到了异常，没有语法错误，它执行完美

为什么当我在查询对象上调用 createSQLQuery()) 时，值参数就会被删除。

18:20:16,855 INFO  [stdout] (http-localhost-127.0.0.1-8080-2) insert into examschedule (class_id,examtype_id,subject_id,examdate,start_time,end_time,messagetype_id,createddate) values(13,1,5,'2015-09-07','11AM','12PM',2,'2015-09-12 18:20:16.855');
18:20:16,868 INFO  [stdout] (http-localhost-127.0.0.1-8080-2) Hibernate: insert into examschedule (class_id,examtype_id,subject_id,examdate,start_time,end_time,messagetype_id,createddate) values

18:20:16,871 WARN  [org.hibernate.engine.jdbc.spi.SqlExceptionHelper] (http-localhost-127.0.0.1-8080-2) SQL Error: 1064, SQLState: 42000
18:20:16,871 ERROR [org.hibernate.engine.jdbc.spi.SqlExceptionHelper] (http-localhost-127.0.0.1-8080-2) You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1
18:20:16,876 ERROR [stderr] (http-localhost-127.0.0.1-8080-2) org.hibernate.exception.SQLGrammarException: could not execute statement

Answer 1

我在评论中提到的代码中有一些错误:

String sqlQuery = "insert into examschedule (class_id,examtype_id,subject_id,examdate,start_time,end_time,messagetype_id,createddate) values";
   String sql1 =sql1+ "("+ classes.getId()+","+
               //^^ here you are adding undefined value remove it
                            exType.getId()+","+
                            subjectName.getId()+","+
                            "'"+sqlDate+"'"+","+"'"+startTime+"'"+","+"'"+endTime+"'"+","+msgType.getId()+","+"'"+sqlTimestamp+"'"+");";

 System.out.println(sqlQuery+sql1); //complete query is in sqlQuery+sql1
 query = session.createSQLQuery(sqlQuery); //here you are passing half query use sqlQuery+sql1
 int result = query.executeUpdate();

考虑并尝试以下代码片段:

String sqlQuery = "insert into examschedule (class_id,examtype_id,subject_id,examdate,start_time,end_time,messagetype_id,createddate) values";
   sqlQuery = sqlQuery + "("+ classes.getId()+","+
                            exType.getId()+","+
                            subjectName.getId()+","+
                            "'"+sqlDate+"'"+","+"'"+startTime+"'"+","+"'"+endTime+"'"+","+msgType.getId()+","+"'"+sqlTimestamp+"'"+");";

 System.out.println(sqlQuery);
 query = session.createSQLQuery(sqlQuery);
 int result = query.executeUpdate();

Please don't to SO for debuging your snippet. Read What types of questions should I avoid asking?