> 准备
以MySQL为例，执行下面的sql建立数据表
CREATE TABLE `t_user` (
`id` int(11) NOT NULL,
`name` varchar(50) DEFAULT NULL,
`sex` char(4) DEFAULT NULL,
`age` int(11) DEFAULT NULL,
`career` varchar(100) DEFAULT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

> 引入jar或maven依赖，需要jar包
gerald-jorm-1.0.5.jar 最新版本下载：http://sourceforge.net/projects/javaclub/files
commons-logging-1.1.1.jar
log4j-1.2.14.jar
mysql-connector-java-5.1.6.jar
javassist-3.11.0.GA.jar 或 cglib-nodep-2.2.2.jar (根据实际情况选择性加入)

> 配置文件
在你的java工程的classpath下建立config.properties和jdbc.cfg.xml文件
config.properties内容：
# 下面路径可以根据实际情况指定，为相对classpath的路径地址
jdbc.config.path=jdbc.cfg.xml

jdbc.cfg.xml内容：
< xml version='1.0' encoding="UTF-8" >

org.javaclub.jorm.jdbc.connection.impl.SimpleConnection
MySQLDialect
com.mysql.jdbc.Driver
jdbc:mysql://127.0.0.1:3306/test useUnicode=true&characterEncoding=UTF-8
test
root
root

org.javaclub.jorm.jdbc.connection.impl.PooledConnection
MySQLDialect
com.mysql.jdbc.Driver
jdbc:mysql://127.0.0.1:3306/test useUnicode=true&characterEncoding=UTF-8
test
root
root
1
8
select 1

> 实体类User.java
@PK(value = "id")
@Entity(table="t_user")
public class User {

@Id
private int id;

private String name;

private String sex;

private Integer age;

private String career;

@NoColumn
private int kvalue;

public User() {
super();
}

public User(String name, String sex, Integer age, String career) {
super();
this.name = name;
this.sex = sex;
this.age = age;
this.career = career;
}

public User(Integer id, String name, String sex, Integer age, String career) {
super();
this.id = id;
this.name = name;
this.sex = sex;
this.age = age;
this.career = career;
}

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 getSex() {
return sex;
}

public void setSex(String sex) {
this.sex = sex;
}

public Integer getAge() {
return age;
}

public void setAge(Integer age) {
this.age = age;
}

public String getCareer() {
return career;
}

public void setCareer(String career) {
this.career = career;
}

public int getKvalue() {
return kvalue;
}

public void setKvalue(int kvalue) {
this.kvalue = kvalue;
}

public String toString() {
StringBuffer sb = new StringBuffer();
sb.append("[" + id + ", " + name + ", " + sex + ", " + age + ", " + career + "]");
return sb.toString();
}

}

这里数据库字段和java实体类User的属性在命名上是一致的，如果不一致，比如如果表创建sql为：
CREATE TABLE `t_user` (
`user_id` int(11) NOT NULL,
`user_name` varchar(50) DEFAULT NULL,
`sex` char(4) DEFAULT NULL,
`col_age` int(11) DEFAULT NULL,
`career_job` varchar(100) DEFAULT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;