一、引入pom
<dependency> <groupId>me.lovegao</groupId> <artifactId>gdao</artifactId> <version>0.0.2-SNAPSHOT</version> </dependency>
需要先将gdao项目打包加到本地仓库。
二、定义数据库对应的类和建表
1、UserDo
1 package me.lovegao.gdao.dos; 2 3 import me.lovegao.gdao.bean.annotation.GColumn; 4 import me.lovegao.gdao.bean.annotation.GId; 5 import me.lovegao.gdao.bean.annotation.GTable; 6 7 @GTable("t_user") 8 public class UserDo { 9 @GId(isAutoIncrease=true) 10 @GColumn(name="id") 11 private long id; 12 13 @GColumn(name="name") 14 private String name; 15 16 @GColumn(name="age") 17 private int age; 18 19 public long getId() { 20 return id; 21 } 22 public void setId(long id) { 23 this.id = id; 24 } 25 public String getName() { 26 return name; 27 } 28 public void setName(String name) { 29 this.name = name; 30 } 31 public int getAge() { 32 return age; 33 } 34 public void setAge(int age) { 35 this.age = age; 36 } 37 38 }
2、对应表sql
CREATE TABLE `t_user` ( `id` bigint(20) unsigned NOT NULL AUTO_INCREMENT COMMENT '主键', `name` varchar(255) NOT NULL DEFAULT '' COMMENT '名称', `age` int(15) NOT NULL DEFAULT 0 COMMENT '年龄', PRIMARY KEY (`id`) ) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8 COMMENT='测试-用户表';
3、mysql配置
##驱动名称 driverName=com.mysql.jdbc.Driver ##连接url connectionUrl=jdbc:mysql://localhost:3306/simple?useServerPrepStmts=false&rewriteBatchedStatements=true&connectTimeout=1000&useUnicode=true&characterEncoding=utf-8 ##用户名 userName=ss ##用户密码 userPassword=111111 ##初始化连接数 initConnectionNum=10 ##最大连接数 maxConnectionNum=50 ##最大查询等待时间 maxQueryTime=3
三、创建UserDao
package me.lovegao.gdao.dao; import me.lovegao.gdao.dos.UserDo; import me.lovegao.gdao.orm.BaseDao; import me.lovegao.gdao.sqlexecute.ISqlExecutor; public class UserDao extends BaseDao<UserDo, Long> { public UserDao(ISqlExecutor sqlExecutor) { super(sqlExecutor); } }
四、执行
public static void main(String[] args) throws Exception { ISqlExecutor sqlExecutor = initDao(); addTest(sqlExecutor); } public static void addTest(ISqlExecutor sqlExecutor) throws Exception { UserDao userDao = new UserDao(sqlExecutor); UserDo[] uds = listUser(); System.out.println("准备开始添加"); userDao.add(uds[0]); System.out.println("开始添加---"); long t1 = System.currentTimeMillis(); for(int i=1; i<uds.length; i++) { userDao.add(uds[i]); } long t2 = System.currentTimeMillis(); double useTime = t2 - t1; //5000条,totalUseTime:8629.0ms,avgUseTime:1.7261452290458092ms System.out.println("totalUseTime:" + useTime + "ms,avgUseTime:" + useTime/(uds.length-1) + "ms"); } public static ISqlExecutor initDao() throws Exception { Properties prop = new Properties(); String confPath = "/mysql.properties"; prop.load(DaoTest.class.getResourceAsStream(confPath)); DaoResourceManager daoResource = new DaoResourceManager(prop); ISqlExecutor sqlExecutor = daoResource.getSqlExecutor(); return sqlExecutor; }