[转载]Flex数据访问：WebService(二)使用参数 – 无风

[转载]Flex数据访问：WebService(二)使用参数 – 无风 – 博客园.

上一篇介绍Flex的WebService的使用，可以调用多种类型的数据，都是直接调用，没有使用参数，本篇学习使用参数调用 WebService，WebService的参数类型可以是：简单类型（如数值，字串串等），简单实体模型（只有属性），比较复杂的实体模型（内陷其他实体），以及集合，XML等。

Flex在调用不同后台实现的Web Method方式只是在构造参数有些区别，调用方式是一样的，以下简单介绍Flex调用.NET的Web Method使用不同参数。

定义Web Method用到的类：

 1:      [Serializable]

 2:      public class Employee

 3:      {

 4:          public int id { get; set; }

 5:          public string name { get; set; }

 6:          public int age { get; set; }

 7:      }

8:

 9:      [Serializable]

10:      public class Dept

11:      {

12:          public int DeptID{ get; set; }

13:          public string DeptName { get; set; }

14:          public Employee[] Employees { get; set; }

15:      }

16:

.codearea { color: black; background-color: white; line-height: 18px; border: 1px solid rgb(79, 129, 189); margin: 0pt; width: auto ! important; overflow: auto; text-align: left; font-size: 12px; font-family: “Courier New”,”Consolas”,”Fixedsys”,”BitStream Vera Sans Mono”,courier,monospace,serif; }.codearea pre { color: black; line-height: 18px; padding: 0pt 0pt 0pt 12px ! important; margin: 0em; background-color: rgb(255, 255, 255) ! important; }.linewrap pre { white-space: pre-wrap; word-wrap: break-word; }.codearea pre.alt { background-color: rgb(247, 247, 255) ! important; }.codearea .lnum { color: rgb(79, 129, 189); line-height: 18px; }一、简单类型参数

Web Method定义：

 1:          [WebMethod]

 2:          public Employee GetEmployee(int id)

 3:          {

 4:              return new Employee

 5:              {

 6:                  id = id,

 7:                  name = "Employee"+id,

 8:                  age = 25

 9:              };

10:          }

11:

 1:  <?xml version="1.0" encoding="utf-8"?>

 2:  <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute">

 3:      <mx:Script>

 4:          <![CDATA[

 5:              import mx.rpc.soap.mxml.Operation;

 6:              import mx.collections.ArrayCollection;

 7:              import mx.rpc.events.FaultEvent;

 8:              import mx.rpc.events.ResultEvent;

 9:              import mx.controls.Alert;

10:              private function onResult(event:ResultEvent):void

11:              {

12:                  var msg:String="ID:"+event.result.id+"\n"+

13:                          "Name:"+event.result.name+"\n"+

14:                          "Age:"+event.result.age;

15:                  Alert.show(msg);

16:              }

17:

18:              private function onFault(event:FaultEvent):void

19:              {

20:                 Alert.show("Error："+event.message);

21:              }

22:

23:              private function GetEmployee():void

24:              {

25:                  MyService.GetEmployee.send();

26:              }

27:          ]]>

28:      </mx:Script>

29:

30:      <mx:Button label="GetEmployee" click="GetEmployee()"/>

31:

32:      <mx:WebService id="MyService" wsdl="http://localhost:4081/Flex.asmx?WSDL" useProxy="false"

33:       result="onResult(event)" fault="onFault(event)">

34:          <mx:operation name="GetEmployee">

35:              <mx:request xmlns="">

36:                  <id>1</id>

37:              </mx:request>

38:          </mx:operation>

39:      </mx:WebService>

40:  </mx:Application>

二、简单对象

Web Method定义，模拟添加对象：

1:  [WebMethod]

2:  public int AddEmployee(Employee employee)

3:  {

4:      return 1;

5:  }

6:

 1:  <?xml version="1.0" encoding="utf-8"?>

 2:  <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute">

 3:      <mx:Script>

 4:          <![CDATA[

 5:              import mx.rpc.soap.mxml.Operation;

 6:              import mx.collections.ArrayCollection;

 7:              import mx.rpc.events.FaultEvent;

 8:              import mx.rpc.events.ResultEvent;

 9:              import mx.controls.Alert;

10:              private function onResult(event:ResultEvent):void

11:              {

12:                  Alert.show(event.result.toString());

13:              }

14:

15:              private function onFault(event:FaultEvent):void

16:              {

17:                 Alert.show("Error："+event.message);

18:              }

19:

20:              private function AddEmployee():void

21:              {

22:                  var emp:Object=new Object();

23:                  emp.id=0;

24:                  emp.name="user1";

25:                  emp.age=20;

26:

27:                  MyService.AddEmployee(emp);

28:              }

29:          ]]>

30:      </mx:Script>

31:

32:      <mx:Button label="AddEmployee" click="AddEmployee()"/>

33:

34:      <mx:WebService id="MyService" wsdl="http://localhost:4081/Flex.asmx?WSDL" useProxy="false"

35:       result="onResult(event)" fault="onFault(event)">

36:          <mx:operation name="AddEmployee">

37:          </mx:operation>

38:      </mx:WebService>

39:  </mx:Application>

跟踪Web Method的employee参数：

三、对象数组

Web Method定义，添加多个对象：

1:  [WebMethod]

2:  public int AddEmployees(Employee[] list)

3:  {

4:      return list.Length;

5:  }

6:

 1:  <?xml version="1.0" encoding="utf-8"?>

 2:  <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute">

 3:      <mx:Script>

 4:          <![CDATA[

 5:              import mx.rpc.soap.mxml.Operation;

 6:              import mx.collections.ArrayCollection;

 7:              import mx.rpc.events.FaultEvent;

 8:              import mx.rpc.events.ResultEvent;

 9:              import mx.controls.Alert;

10:              private function onResult(event:ResultEvent):void

11:              {

12:                  Alert.show(event.result.toString());

13:              }

14:

15:              private function onFault(event:FaultEvent):void

16:              {

17:                 Alert.show("Error："+event.message);

18:              }

19:

20:              private function AddEmployee():void

21:              {

22:                  var empArr:Array=new Array();

23:                  empArr.push({id:0,name:"user1",age:22});

24:                  empArr.push({id:0,name:"user2",age:23});

25:                  empArr.push({id:0,name:"user3",age:25});

26:

27:                  MyService.AddEmployees(empArr);

28:              }

29:          ]]>

30:      </mx:Script>

31:

32:      <mx:Button label="AddEmployee" click="AddEmployee()"/>

33:

34:      <mx:WebService id="MyService" wsdl="http://localhost:4081/Flex.asmx?WSDL" useProxy="false"

35:       result="onResult(event)" fault="onFault(event)">

36:          <mx:operation name="AddEmployees">

37:          </mx:operation>

38:      </mx:WebService>

39:  </mx:Application>

四、复杂对象

Web Method定义：

1:  [WebMethod]

2:  public int AddDept(Dept dept)

3:  {

4:      return 1;

5:  }

6:

 1:  <?xml version="1.0" encoding="utf-8"?>

 2:  <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute">

 3:      <mx:Script>

 4:          <![CDATA[

 5:              import mx.rpc.soap.mxml.Operation;

 6:              import mx.collections.ArrayCollection;

 7:              import mx.rpc.events.FaultEvent;

 8:              import mx.rpc.events.ResultEvent;

 9:              import mx.controls.Alert;

10:              private function onResult(event:ResultEvent):void

11:              {

12:                  Alert.show(event.result.toString());

13:              }

14:

15:              private function onFault(event:FaultEvent):void

16:              {

17:                 Alert.show("Error：+event.message);

18:              }

19:

20:              private function AddDept():void

21:              {

22:                  var empArr:Array=new Array();

23:                  empArr.push({id:0,name:"user1",age:22});

24:                  empArr.push({id:0,name:"user2",age:23});

25:                  empArr.push({id:0,name:"user3",age:25});

26:

27:                  var dept:Object=new Object();

28:                  dept.DeptID=1;

29:                  dept.DeptName="dept1";

30:                  dept.Employees=empArr;

31:

32:                  MyService.AddDept(dept);

33:              }

34:          ]]>

35:      </mx:Script>

36:

37:      <mx:Button label="AddDept" click="AddDept()"/>

38:

39:      <mx:WebService id="MyService" wsdl="http://localhost:4081/Flex.asmx?WSDL" useProxy="false"

40:       result="onResult(event)" fault="onFault(event)">

41:          <mx:operation name="AddDept">

42:          </mx:operation>

43:      </mx:WebService>

44:  </mx:Application>

[转载]Flex数据访问：WebService(二)使用参数 - 无风 - 博客园

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