版权声明:java洪君 https://blog.csdn.net/qq_43532342/article/details/89207901
Code code=new Code();
code.setCodeName(new DateUtil().getDayTimeFormat());
Code updCode=new Code();
updCode.setId(1);
codeService.update(code,new EntityWrapper<>(updCode));
UPDATE code SET code_name=? WHERE id=?