nutzwk 复制对象，插入复制对象到数据库报错说主键冲突

    Order_main_history  h = new Order_main_history();
                BeanUtils.copyProperties(o,h); //复制对象
                orderMainHistoryService.fastInsert(h);

com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException: Duplicate entry '180601101115196465' for key 'PRIMARY'
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:425)
at com.mysql.jdbc.Util.getInstance(Util.java:408)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:936)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3976)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3912)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2530)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2683)

数据库还有这条数据
这是什么原因

wendal

1楼•2393天前

主键是@Name??

大鲨鱼(Wizzercn)

2楼•2393天前

Order_main_history  h = new Order_main_history();
BeanUtils.copyProperties(o,h); 
h.setId(null);//类似这样                
orderMainHistoryService.fastInsert(h);

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