不用spring,hibernate超傻瓜JAVA开发(javabean+数组)

 

javabean+数组优点：

1、简单：java程序中最简单的类莫过于javabean，javabean有一套成熟的规范，易于编写

2、方便：javabean是数据的载体，既可以通过set和get方式来操作数据，又可以象使用数组一样来操作javabean

3、通用：通过下标来操作javabean，你所写的代码将是通用的，可移植的。你所写的功能组件将适用于所有的javabean

4、0配置：通过数组来对javabean进行说明配置，比XML文件更清晰

5、易于修改：程序中不再有任何SQL语句，数据结构发生改变，只要修改javabean即可

6、易于维护：由于第3点的通用性，你只需要维护页面及操作逻辑。

7、傻瓜性：会操作数组就会使用，所以没有任何学习曲线

示例：

package com.askyear.demo.bean;import java.util.Date;import com.askyear.db.ATable;import com.askyear.db.key.String32Key;/** * 用户 * * @author askyear.com * */public class User extends ATable {public static final String USER_SESSION = "user";private static final long serialVersionUID = -8942196092377147945L;private String member;private String name;private String password;private String email;private String type;private Boolean useable;private Date createTime;public User() {this.initSelf();}public void buildKeyIfNull() {if (this.member == null || this.member.length() == 0) {this.member = String32Key.getKeyValue();}if (this.useable == null)this.useable = true;if (this.createTime == null)this.createTime = new Date();}public Object getPropertyValue(int index) {switch (index) {case 0:return member;case 1:return name;case 2:return password;case 3:return email;case 4:return type;case 5:return useable;case 6:return createTime;default:throw new ArrayIndexOutOfBoundsException("访问越界:" + index);}}public void initSelf() {this.setTableName("sys_user");this.setTableChinaName("系统用户");key = new int[] { 0 };property = new String[] { "member", "name", "password", "email", "type", "useable", "createTime" };field = new String[] { "member", "name", "password", "email", "type", "useable", "createTime" };propertyName = new String[] { "帐号", "昵称", "密码", "邮箱", "类型", "状态", "注册时间" };}public void setPropertyValue(int index, Object value) {switch (index) {case 0:this.member = parseString(value);break;case 1:this.name = parseString(value);break;case 2:this.password = parseString(value);break;case 3:this.email = parseString(value);break;case 4:this.type = parseString(value);break;case 5:this.useable = parseBoolean(value);break;case 6:this.createTime = parseDate(value);break;default:throw new ArrayIndexOutOfBoundsException("访问越界:" + index);}}public String getEmail() {return email;}public void setEmail(String email) {this.email = email;}public String getName() {return name;}public void setName(String name) {this.name = name;}public String getMember() {return member;}public void setMember(String member) {this.member = member;}public String getPassword() {return password;}public void setPassword(String password) {this.password = password;}public String getType() {return type;}public void setType(String type) {this.type = type;}public Boolean getUseable() {return useable;}public void setUseable(Boolean useable) {this.useable = useable;}public Date getCreateTime() {return createTime;}public void setCreateTime(Date createTime) {this.createTime = createTime;}}

　数组property指明了该javabean所具有的属性
  property = new String[] { "member", "name", "password", "email", "type", "useable", "createTime" };

  数组field指明了属性分别对应的字段
  field = new String[] { "member", "name", "password", "email", "type", "useable", "createTime" };

  数组propertyName指定了属性的中文名称
  propertyName = new String[] { "帐号", "昵称", "密码", "邮箱", "类型", "状态", "注册时间" };

setPropertyValue方法可以对javabean任何一个属性赋值，而且自动进行类型转换，改变程序到处都是类型转换的状况

public void setPropertyValue(int index, Object value) {switch (index) {case 0:this.member = parseString(value);break;case 1:this.name = parseString(value);break;case 2:this.password = parseString(value);break;case 3:this.email = parseString(value);break;case 4:this.type = parseString(value);break;case 5:this.useable = parseBoolean(value);break;case 6:this.createTime = parseDate(value);break;default:throw new ArrayIndexOutOfBoundsException("访问越界:" + index);}}

 

示例下载 ：http://www.askyear.com/download.jsp?id=f63bffbfff6b4411b072de66c282a5c5