resultsetutil.java

来自「一个可以存储和打印成绩单的系统」· Java 代码 · 共 41 行

package org.minjey.cjsjk.dao;

import java.lang.reflect.Field;
import java.sql.ResultSet;

import org.minjey.cjsjk.util.Reflector;
import org.minjey.cjsjk.util.TypeConverter;

public class ResultSetUtil {

	private Reflector reflector;
	
	public ResultSetUtil() {
		reflector = new Reflector();
	}
	
	public Object newObject(Class cla, ResultSet rs) {
		Object obj = null;
		try {
			obj = cla.newInstance();
			Field[] fields = cla.getSuperclass().getDeclaredFields();
			for(int i = 0; i < fields.length; i++) {
				Class tcla = TypeConverter.objecttosimple(fields[i].getType());
				String tname = reflector.getClassName(tcla);	//获取参数类型名称
				
				String vname = fields[i].getName();	//获取参数名称
				Object vobj = reflector.getValue(rs, tname, new Object[]{vname});	//获取参数值
				if(vobj != null) {
					reflector.setValue(obj, vname, new Object[]{vobj});
				}
			}
		} catch (InstantiationException e) {
			e.printStackTrace();
		} catch (IllegalAccessException e) {
			e.printStackTrace();
		}
		return obj;
	}
	
}