Ext Grid 实现批量添加或者修改
将ExtJS Grid 中的record逐一转化为Bean，实现批量的添加或者修改
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package com.hwasun.utils;import java.lang.reflect.Field;import java.text.SimpleDateFormat;import java.util.ArrayList;import java.util.Iterator;import java.util.List;import net.sf.json.JSONArray;import net.sf.json.JSONObject;import net.sf.json.JSONSerializer;import org.junit.Test;/** * 将Ext中Store的data数据转化为Java中的List * @author JLee v .10 * @since 2011-2-25 * @function 主要是为了ext中可编辑的grid实现批量添加与修改 * 将注解的地方放开可以测试一下 */public class Json2List {@Test//将Store中的data(即：多个record)转化为多个beanpublic Object JSON4Hibernate(Class clazz ,String json)throws Exception{System.out.println("将要解析的JSON串"+json);List list = new ArrayList();JSONObject jsonObjSplit = JSONObject.fromObject(json);JSONArray ja = jsonObjSplit.getJSONArray("data");for (int i = 0; i < ja.size(); i++) {Object bean = clazz.newInstance() ;Class c = bean.getClass() ;Field[] fs = c.getDeclaredFields();JSONObject jsonObject = (JSONObject) ja.get(i);for (Iterator iter = jsonObject.keys(); iter.hasNext();) {String key = (String) iter.next();String value = jsonObject.getString(key);//为了父类赋值 适应继承 过来的IDif("id".equals(key)){modifyId(bean,"id",value) ;}//为自己的实体每个属性赋值for (Field f : fs) {if(f.getName().equals(key)){Object vType = convertValueType(bean,f ,value);mf1(bean,f.getName(),vType);}}}list.add(bean) ;}return list ;}//对bean的属性进行判断，然后将JSON中的值转化为对应的类型public Object convertValueType(Object o,Field f, String value) throws Exception {Object ov = null ;String fieldTypeName = f.getType().getName();if (fieldTypeName.equals("int")||fieldTypeName.equals("java.lang.Integer")) {ov = value!=null&&value!="null"&&!"".equals(value)?Integer.parseInt(value):null ;} else if (fieldTypeName.equals("long")||fieldTypeName.equals("java.lang.Long")) {ov = value!=null&&value!="null"&&!"".equals(value)?Long.parseLong(value):null ;} else if (fieldTypeName.equals("float")||fieldTypeName.equals("java.lang.Float")) {ov = value!=null&&value!="null"&&!"".equals(value)?Float.parseFloat(value):null ;} else if (fieldTypeName.equals("double")||fieldTypeName.equals("java.lang.Double")) {ov = value!=null&&value!="null"&&!"".equals(value)?Double.parseDouble(value):null ;} else if (fieldTypeName.equals("boolean")||fieldTypeName.equals("java.lang.Boolean")) {ov = value!=null&&value!="null"&&!"".equals(value)?Boolean.parseBoolean(value):null ;} else if (fieldTypeName.equals("java.util.Date")) {if(value.length()>11){???? ov = value!=null&&value!="null"&&!"".equals(value)?new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").parse(value):null ;??? }else{???? ov = value!=null&&value!="null"&&!"".equals(value)?new SimpleDateFormat("yyyy-MM-dd").parse(value):null ;??? }???? } else if (fieldTypeName.equals("java.lang.String")) {ov = (String)value ;} else if (fieldTypeName.equals("java.lang.Object")) {ov = (Object)value ;} else { Field oField = o.getClass().getDeclaredField(f.getName()); if (oField != null) { oField.setAccessible(true); Object entity = oField.get(o); if (entity == null) { entity = oField.getType().newInstance(); } ov = json2Object(value ,entity); } }return ov ;}//将{name:"jlee",sex:"male",age:18,job:"student"}json格式付给bean中对应的Object属性public Object json2Object(String json ,Object entity)throws Exception{Class c = entity.getClass();Field[] fs = c.getDeclaredFields();if("[".equals(json.substring(0, 1))){json = json.substring(1) ;}if("]".equals(json.substring(json.length()-1))){json = json.substring(0,json.length()-1) ;} JSONObject jsonObject = (JSONObject) JSONSerializer.toJSON(json);for (Iterator iter = jsonObject.keys(); iter.hasNext();) {String key = (String)iter.next();String value = jsonObject .getString(key) ; //为了父类赋值 适应继承 过来的IDif("id".equals(key)){modifyId(entity,"id",value) ;}for (Field f : fs) {if(f.getName().equals(key)){Object vType = convertValueType(entity,f ,value);mf1(entity,f.getName(),vType);}}}return entity ;}//修改bean的属性值public void mf1(Object o , String fieldName ,Object newValue)throws Exception {Class c = o.getClass() ;Field f = c.getDeclaredField(fieldName);f.setAccessible(true);f.set(o, newValue);}//修改父类的 ID 值public void modifyId(Object bean ,String fieldName ,String value) throws Exception{Class c = bean.getClass().getSuperclass() ;Field[] array = c.getDeclaredFields() ;for(Field _f : array){if(_f.getName().equals(fieldName)){Field f = c.getDeclaredField(fieldName);Object vType = convertValueType(bean,f ,value);f.setAccessible(true);f.set(bean, vType);}}}public static void main(String[] args)throws Exception {String json = "{data:[" +"{id:'',name:'Lily',amount:'100',num:'12.3',isRight:'true',myTest:{id:'1',name:'test1',myTest:{id:'32'}}}," +"{id:'4',name:'Jim',amount:'200',num:'12.4',isRight:'false',myTest:{id:'2',name:'test2',myTest:{id:'3'}}}" + "]}";Json2List mj = new Json2List();Object list = mj.JSON4Hibernate(MyBean.class,json);for(MyBean mb : (List<MyBean>)list){System.out.println("解析之后的Bean："+mb.toString());}}} class MyBean {private Integer id ;private String name ;private Long amount ;private boolean isRight ;private double num ;private MyTest myTest ;public MyTest getMyTest() {return myTest;}public void setMyTest(MyTest myTest) {this.myTest = myTest;}public Integer getId() {return id;}public void setId(Integer id) {this.id = id;}public String getName() {return name;}public void setName(String name) {this.name = name;}public Long getAmount() {return amount;}public void setAmount(Long amount) {this.amount = amount;}public boolean getIsRight() {return isRight;}public void setIsRight(boolean isRight) {this.isRight = isRight;}public double getNum() {return num;}public void setNum(double num) {this.num = num;}@Overridepublic String toString() {return "bean的值 { id:"+this.getId()+" name:"+this.getName()+" num:"+this.getNum()+" amount:"+this.getAmount() + " isRight:" + this.getIsRight()+ " myTest:"+this.getMyTest().toString()+" }";}} class MyTest { private int id ; private String name ; private MyTest myTest ; public MyTest getMyTest() {return myTest;}public void setMyTest(MyTest myTest) {this.myTest = myTest;}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; } @Override public String toString() { return "{id:"+this.getId()+","+"name:"+this.getName()+" myTest:{ id:"+this.getMyTest().getId()+"}"+" }"; } }?
运行结果：
将要解析的JSON串{data:[{id:'',name:'Lily',amount:'100',num:'12.3',isRight:'true',myTest:{id:'1',name:'test1',myTest:{id:'32'}}},{id:'4',name:'Jim',amount:'200',num:'12.4',isRight:'false',myTest:{id:'2',name:'test2',myTest:{id:'3'}}}]}
解析之后的Bean：bean的值?? { id:null?? name:Lily?? num:12.3? amount:100? isRight:true?? myTest:{id:1,name:test1? myTest:{? id:32}? } }
解析之后的Bean：bean的值?? { id:4?? name:Jim?? num:12.4? amount:200? isRight:false?? myTest:{id:2,name:test2? myTest:{? id:3}? } }