今天完成内容：
开发家庭小账本
1.编写代码
package com.edu.entity;
import java.util.Date;
public class User {
private int id;
private String username;
private String userused;
private String usermoney;
private Date usedate;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getUserused() {
return userused;
}
public void setUserused(String userused) {
this.userused = userused;
}
public String getUsermoney() {
return usermoney;
}
public void setUsermoney(String usermoney) {
this.usermoney = usermoney;
}
public Date getUsedate() {
return usedate;
}
public void setUsedate(Date usedate) {
this.usedate = usedate;
}
public User(int id, String username, String userused, String usermoney, Date usedate) {
super();
this.id = id;
this.username = username;
this.userused = userused;
this.usermoney = usermoney;
this.usedate = usedate;
}
public User() {
}
}
package com.edu.entity;
import java.sql.Connection;
import java.sql.DriverManager;
public class DbHelper {
private static String url = "jdbc:mysql://localhost:3306/countuser";
private static String userName = "root";
private static String passWord = "123456";
private static Connection conn = null;
private DbHelper() {
}
public static Connection getConnection() {
if (null == conn) {
try {
Class.forName("com.mysql.jdbc.Driver");
conn = DriverManager.getConnection(url, userName, passWord);
} catch (Exception e) {
e.printStackTrace();
}
}
return conn;
}
}
遇到问题：
能够连接数据库，但是增删改查有问题
明日目标：
学习Android studio的开发