Android 数据库封装（SQLite）

Android 数据库操作（SQLite）

数据库封装，方便使用。实现了数据库拷贝，实体类注解配置表及字段，并实现数据封装返回实体类，简化了sql编写和对游标的操作。

动态预览

使用

初始化

 QuickDb dbHelper;dbHelper = new QuickDb(this, "quick_db1.db", "quick_db2.db", null, 10, this);

生成表

  dbHelper.createTable(User.class);

实体类

@DBTable(name = "user")
public class User {@SQLObj(name = "id",constraints = @Constraints(primaryKey = true))private int id;@SQLObj(name = "name")private String name;@SQLObj(name = "header")private String header;private int age;private int sex;public int getId() {return id;}public void setId(int id) {this.id = id;}public String getName() {return name;}public void setName(String name) {this.name = name;}public String getHeader() {return header;}public void setHeader(String header) {this.header = header;}public int getAge() {return age;}public void setAge(int age) {this.age = age;}public int getSex() {return sex;}public void setSex(int sex) {this.sex = sex;}
}

插入数据

 User user = new User();user.setName("张三");user.setAge(18);dbHelper.insert(user);

批量插入

List<Member> members = new ArrayList<>();
for (int i = 1; i <= 10; i++) {Member member1 = new Member();member1.setAge(i);member1.setName("M_" + i);members.add(member1);
}
dbHelper.insertArray(members);

删除数据

User user_d = new User();
user_d.setId(2);
dbHelper.delete(user_d);

删除全部

dbHelper.deleteAll(Member.class);

修改数据

Member member = members.get(0);
member.setName("sb");
member.setAge(18);
dbHelper.modify(member);

查找（列表）

Member member1 = new Member();
member1.setId(1);
List<Member> members = dbHelper.findArray(member1);

查找（单条）

User user_t = new User();
user_t.setId(3);
User user2 = dbHelper.findOne(user_t);

条件查找（列表）

List<Member> members = new ArrayList<>();
members = dbHelper.findArray("select * from member", Member.class);

条件查找（单条）

Member member = dbHelper.findOne("select * from member", Member.class);

源码

https://gitee.com/squirrelhuan/quick-db