我试过不建立As对象也可以实现java对象的转换
flex相关jar包中java对象转换到AS对象中间有个ASObject(一个java类继承MAP)他把java类的属性读出放到其Map映射返回到flex前台就是ASObject了
就是说你new 一个ASOBject 按照MAP设置好属性,值 到前台就是一个ASObject对象可以直接用该对象取值
总结就是:
flex对象传到java(如果没经过绑定强转)都看成ASObject 其为一个Map型集合可以通过类属性充当Key从中取值
flex中集合传来都看成flex.messaging.io.ArrayCollection该集合实现List接口传递给flex flex可以直接识别
flexObjec <--> ASObject(flex.messaging.io.amf.ASObject) <---> javaObject
flexArray <--> ArrayCollection(flex.messaging.io.ArrayCollection) <---> javaArray(List)
例:我查询数据库返回ASObject到flex
import flex.messaging.io.ArrayCollection;
public ArrayCollection getSqlData(String sql)
{
ArrayCollection asList = new ArrayCollection(jdbc.getSqlData(sql));
return asList;
}
这是我自己写的一个类尝试转换的 时间久远那些方法测试过没我也忘了(基于Spring相关类)
/**
* flex类未指定对应java对象
*
* 将flex提交于java后台的数据对应到java对象中
* @param fromObj
* @param toObj
*/
public static void flexObjectToVo(ASObject fromObj,Object toObj)
{
Assert.notNull(fromObj, "Flex对象为空");
Assert.notNull(toObj, "java对象为空");
PropertyDescriptor targetPds[] = BeanUtils.getPropertyDescriptors(toObj.getClass()); //遍历获取java对象全部属性
for (Object obj : targetPds) //循环遍历属性
{
PropertyDescriptor targetPd = (PropertyDescriptor)obj;
if(targetPd.getWriteMethod() == null) //获取该属性的set方法如果无则继续下次循环
continue;
//有set方法的属性 vo的正常属性
try
{
Object value = fromObj.get(targetPd.getName()); //flex提交的值
Method writeMethod = targetPd.getWriteMethod();
if(!Modifier.isPublic(writeMethod.getDeclaringClass().getModifiers()))
writeMethod.setAccessible(true); //设置到Vo
writeMethod.invoke(toObj, new Object[] {value});
}
catch(Throwable e)
{
System.out.println("从flex拷值到java对象错误"+e.getMessage()+"\n 当前造成错误的属性"+targetPd.getName());
continue; //当前属性为空 继续赋值
}
}
}
/**
* flex类未指定对应java对象
*
* 将flex提交于java后台的数据对应到java对象中
* @param fromObj
* @param toObj
*/
public static Object getflexObjectToVo(ASObject fromObj,Object toObj)
{
Assert.notNull(fromObj, "Flex对象为空");
Assert.notNull(toObj, "java对象为空");
PropertyDescriptor targetPds[] = BeanUtils.getPropertyDescriptors(toObj.getClass()); //遍历获取java对象全部属性
for (Object obj : targetPds) //循环遍历属性
{
PropertyDescriptor targetPd = (PropertyDescriptor)obj;
if(targetPd.getWriteMethod() == null) //获取该属性的set方法如果无则继续下次循环
continue;
//有set方法的属性 vo的正常属性
try
{
Object value = fromObj.get(targetPd.getName()); //flex提交的值
Method writeMethod = targetPd.getWriteMethod();
if(!Modifier.isPublic(writeMethod.getDeclaringClass().getModifiers()))
writeMethod.setAccessible(true); //设置到Vo
writeMethod.invoke(toObj, new Object[] {value});
}
catch(Throwable e)
{
System.out.println("从flex拷值到java对象错误"+e.getMessage()+"\n 当前造成错误的属性"+targetPd.getName());
continue; //当前属性为空 继续赋值
}
}
return toObj;
}
/**
* flex类指定对应java对象
*
* 将flex提交于java后台的数据对应到java对象中
* @param fromObj
* @param toObj
*/
public static Object flexObjectToVo(ASObject fromObj)
{
Object toObj = null;
try
{
toObj = Class.forName(fromObj.getType()).newInstance();
}catch (Exception e)
{
System.out.println("从flex指定类型中获取java类失败"+e.getMessage());
return null;
}
Assert.notNull(fromObj, "Flex对象为空");
Assert.notNull(toObj, "java对象为空");
PropertyDescriptor targetPds[] = BeanUtils.getPropertyDescriptors(toObj.getClass()); //遍历获取java对象全部属性
for (Object obj : targetPds) //循环遍历属性
{
PropertyDescriptor targetPd = (PropertyDescriptor)obj;
if(targetPd.getWriteMethod() == null) //获取该属性的set方法如果无则继续下次循环
continue;
//有set方法的属性 vo的正常属性
try
{
Object value = fromObj.get(targetPd.getName()); //flex提交的值
Method writeMethod = targetPd.getWriteMethod();
if(!Modifier.isPublic(writeMethod.getDeclaringClass().getModifiers()))
writeMethod.setAccessible(true); //设置到Vo
writeMethod.invoke(toObj, new Object[] {value});
}
catch(Throwable e)
{
System.out.println("从flex拷值到java对象错误"+e.getMessage()+"\n 当前造成错误的属性"+targetPd.getName());
continue; //当前属性为空 继续赋值
}
}
return toObj;
}
/**
* 将flex传递与java的集合转换成toObj形式并以集合返回
* @param ASOList
* @param toObj
* @return
*/
public static List flexObjectToVo(List ASOList,Object toObj)
{
Assert.notNull(toObj, "java对象为空");
List<Object> returnList = new LinkedList<Object>();
for ( int i = 0 ; i < ASOList.size(); i++)
{
ASObject asObj = (ASObject)ASOList.get(i);
returnList.add(getflexObjectToVo(asObj,toObj));
}
return returnList;
}
/**
* 将结果集放到as对象
* @param asObject
* @param rs
*/
public static void getChartFlexList(ASObject asObject,ResultSet rs)
{
try {
int ci = rs.getMetaData().getColumnCount();
for (int i = 1 ; i <=ci ; i++)
{
asObject.put(rs.getMetaData().getColumnName(i), rs.getObject(i));
}
} catch (SQLException e) {
System.out.println("sql 异常"+e.getMessage());
} //总列数
}
/**
* 将结果集放到as集合中 这样实现结果集有序及重复
* @param asObject
* @param rs
*/
public static void getChartFlexList(ArrayCollection asList,ResultSet rs)
{
try {
int ci = rs.getMetaData().getColumnCount();
for (int i = 1 ; i <=ci ; i++)
{
ASObject asObject = new ASObject();
asObject.put(rs.getMetaData().getColumnName(i), rs.getObject(i));
asList.add(asObject);
}
} catch (SQLException e) {
System.out.println("sql 异常"+e.getMessage());
} //总列数
}