faultDetail = "The expected argument types are (...) but the supplied types were
参考文章：http://javacrazyer.iteye.com/blog/745761
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The expected argument types are (...) but the supplied types were (.., flex.messaging.io.amf.ASObject) and converted to ...
今天我用flex把数据写入数据库时出现了以上错误，具体错误信息如下：
body = (null)
clientId = "B22F4C72-1C0B-6EC1-38BD-1BD38C12157E"
correlationId = "3511E1F7-4186-A109-D816-A3EA69824AFF"
destination = "adminDAOImpl"
extendedData = (null)
faultCode = "Server.ResourceUnavailable"
faultDetail = "The expected argument types are (bean.Admin) but the supplied types were (flex.messaging.io.amf.ASObject) and converted to (null)."
faultString = "Cannot invoke method 'AddAdmin'."
headers = (Object)#1
messageId = "B22F4C74-8D09-3BAF-E17B-2D89965CF469"
rootCause = (mx.messaging.messages::ErrorMessage)#2
body = (null)
clientId = (null)
correlationId = (null)
destination = (null)
extendedData = (null)
faultCode = "Client.Message.Deserialize.InvalidType"
faultDetail = (null)
faultString = "Cannot convert type flex.messaging.io.amf.ASObject with remote type specified as 'null' to an instance of class bean.Admin"
headers = (Object)#3
messageId = "B22F4C74-8D1B-A98A-F69A-FA74FC38366F"
rootCause = (null)
timestamp = 1385729518045
timeToLive = 0
timestamp = 1385729518045
timeToLive = 0
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错误截图如下：
---------------------------------------------------------------------------------------------------------------------------------------------------
根据错误信息可知在as对象转为java对象时发生了错误，我的java vo类代码如下：
package bean;
public class Admin { //对应数据库表tbAdmin
int id;
String usrName;
String usrPass;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getUsrName() {
return usrName;
}
public void setUsrName(String usrName) {
this.usrName = usrName;
}
public String getUsrPass() {
return usrPass;
}
public void setUsrPass(String usrPass) {
this.usrPass = usrPass;
}
}-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
我的as vo类代码如下:
package vo
{
public class Admin
{
public var id:int;
public var usrName:String;
public var usrPass:String;
public function Admin()//构造函数
{
}
}
}
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
服务器端往数据库写入java vo类对象的代码如下：
@Override
public int AddAdmin(Admin admin) { //添加管理员
String sql="insert into tbAdmin(id,usrName,usrPass)" +
" values (0?,'1?','2?')";
sql=sql.replace("0?",String.valueOf(admin.getId()));
sql=sql.replace("1?",admin.getUsrName());
sql=sql.replace("2?",admin.getUsrPass());
System.out.println(sql);
return DbCRUD.Add(sql);
}
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
flex端调用远程对象的代码如下：
//增加用户
import vo.Admin;//导入包
protected function btnAdd_clickHandler(event:MouseEvent):void
{
//创建对象
var admin:Admin=new Admin();
admin.id=int(txbId.text);
admin.usrName=txbUsrName.text;
admin.usrPass=txbUsrPass.text;
roAdmin.AddAdmin(admin);//调用远程对象
}
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
flex往数据库写入数据的步骤大致就是这样了，不料我执行以上代码时却出现了文章开始所说的错误，
为什么会出错呢？原来我们在定义as类时没有将其和远程java vo类关联起来，解决方法：
像下面这样定义as类即可：
package vo
{
[RemoteClass(alias="bean.Admin")] //这句不能少
public class Admin
{
public var id:int;
public var usrName:String;
public var usrPass:String;
public function Admin()//构造函数
{
}
}
}
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
注：
[RemoteClass(alias="这里写远程java vo类的全路径")] ，如：
[RemoteClass(alias="bean.Admin")]
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您的十分满意是我追求的宗旨。
您的一点建议是我后续的动力。