一个简单的日志类

最近给一个工程添加了一个简单的日志  对增删改进行简单的记录

 

由于第一次做 可能有很多不完善和设计不合理的地方 以往大家踊跃拍砖 让我整理出更好的类和方法 供大家参考

 

 

为了在不修改以前代码的原则下 增加了这个类 这个类负责记录需要注意的类 

在本例里 需要关注的类为student org 还有positions  这三个类的字段名和中文注释名 是相匹配的 便于显示

个人认为 这些信息应该由领域模型给出

 

import java.util.HashMap;import java.util.Map;public class GetDataUtil {public static GetDataUtil instance; public Map map= null;private GetDataUtil(){}public static GetDataUtil getInstance(){if(instance == null){return new GetDataUtil();}return instance;}public Map getData(){String [][] student = {{"id","loginname","password","name","positionsid","note"},{"编号","登录名","密码","姓名","职务","注释"}};String [][] org = {{"id","pid","name","code","type","sn","sfjh","note"},{"编号","上级编号","名称","代码","类型","sn","sfjh","注释"}};String [][] positions = {{"id","name","sn","note"},{"编号","名称","代码","注释"}};Map map = new HashMap();map.put("Student", student);map.put("Org", org);map.put("Positions", positions);return map;}}

下面为 Log类 描述了 日志

 

package student.hibernate.db; public class Log {private long id ;//日志idprivate long did; //日志所记录的 被增删改的记录idprivate String datetime ;//操作的时间private String note; // 注释public Log(){}public Log(long id,long did ,String datetime,String note){this.id = id;this.did = did;this.datetime = datetime;this.note = note;}public String toString(){return "["+id+"-"+did+"-"+datetime+"-"+note+"]";}public String getDatetime() {return datetime;}public void setDatetime(String datetime) {this.datetime = datetime;}public long getDid() {return did;}public void setDid(long did) {this.did = did;}public long getId() {return id;}public void setId(long id) {this.id = id;}public String getNote() {return note;}public void setNote(String note) {this.note = note;}}