Flex亲密接触java

 flex和java工程可以集成到一起。但这个动作，至少要下载eclipse的plug-in。我要演示的是在flex builder3中建立独立的flex工程，然后在eclipse里建立独立的webservice服务。两者松散耦合，只需要webservice接口连接。

直接进入主题，看看java的webservice。

定义一个接口和一个实现：

1. package mars.flex;
3. public interface ITest {
4.     
5.     public String test();
6.     public String sum(int a,int b);
7.     public String sum1(String[] s);
8.     
9. }

1. package mars.flex;
2. public class Test implements ITest {
4.     public String sum1(String[] ss) {
5.         int result = 0;
6.         for (String s : ss) {
7.             int n = 0;
8.             try {
9.                 n = Integer.parseInt(s);
10.                 result += n;
11.             } catch (Exception e) {
13.             }
14.         }
15.         return "the sum is:"+result;
16.     }
17.     
18.     public String sum(int a,int b) {
19.         int sum=a+b;
20.         return "the sum is:"+sum;
21.     }
23.     public String test() {      
24.         return "java webservice welcome!";
25.     }
26. }
    

发布到tomcat下，地址为：http://localhost:8888/ws4flex/services/ws4flex?wsdl

1. <wsdl:definitions targetNamespace="http://flex.mars">
2. −
3. <wsdl:types>
4. −
5. <xsd:schema attributeFormDefault="qualified" elementFormDefault="qualified" targetNamespace="http://flex.mars">
6. −
7. <xsd:element name="sum">
8. −
9. <xsd:complexType>
10. −
11. <xsd:sequence>
12. <xsd:element maxOccurs="1" minOccurs="1" name="in0" type="xsd:int"/>
13. <xsd:element maxOccurs="1" minOccurs="1" name="in1" type="xsd:int"/>
14. </xsd:sequence>
15. </xsd:complexType>
16. </xsd:element>
17. −
18. <xsd:element name="sumResponse">
19. −
20. <xsd:complexType>
21. −
22. <xsd:sequence>
23. <xsd:element maxOccurs="1" minOccurs="1" name="out" nillable="true" type="xsd:string"/>
24. </xsd:sequence>
25. </xsd:complexType>
26. </xsd:element>
27. −
28. <xsd:element name="test">
29. <xsd:complexType/>
30. </xsd:element>
31. −
32. <xsd:element name="testResponse">
33. −
34. <xsd:complexType>
35. −
36. <xsd:sequence>
37. <xsd:element maxOccurs="1" minOccurs="1" name="out" nillable="true" type="xsd:string"/>
38. </xsd:sequence>
39. </xsd:complexType>
40. </xsd:element>
41. −
42. <xsd:complexType name="ArrayOfString">
43. −
44. <xsd:sequence>
45. <xsd:element maxOccurs="unbounded" minOccurs="0" name="string" nillable="true" type="xsd:string"/>
46. </xsd:sequence>
47. </xsd:complexType>
48. −
49. <xsd:element name="sum1">
50. −
51. <xsd:complexType>
52. −
53. <xsd:sequence>
54. <xsd:element maxOccurs="1" minOccurs="1" name="in0" nillable="true" type="tns:ArrayOfString"/>
55. </xsd:sequence>
56. </xsd:complexType>
57. </xsd:element>
58. −
59. <xsd:element name="sum1Response">
60. −
61. <xsd:complexType>
62. −
63. <xsd:sequence>
64. <xsd:element maxOccurs="1" minOccurs="1" name="out" nillable="true" type="xsd:string"/>
65. </xsd:sequence>
66. </xsd:complexType>
67. </xsd:element>
68. </xsd:schema>
69. </wsdl:types>
70. −
71. <wsdl:message name="sumRequest">
72. <wsdl:part name="parameters" element="tns:sum">
73.     </wsdl:part>
74. </wsdl:message>
75. −
76. <wsdl:message name="sumResponse">
77. <wsdl:part name="parameters" element="tns:sumResponse">
78.     </wsdl:part>
79. </wsdl:message>
80. −
81. <wsdl:message name="sum1Request">
82. <wsdl:part name="parameters" element="tns:sum1">
83.     </wsdl:part>
84. </wsdl:message>
85. −
86. <wsdl:message name="testResponse">
87. <wsdl:part name="parameters" element="tns:testResponse">
88.     </wsdl:part>
89. </wsdl:message>
90. −
91. <wsdl:message name="sum1Response">
92. <wsdl:part name="parameters" element="tns:sum1Response">
93.     </wsdl:part>
94. </wsdl:message>
95. −
96. <wsdl:message name="testRequest">
97. <wsdl:part name="parameters" element="tns:test">
98.     </wsdl:part>
99. </wsdl:message>
100. −
101. <wsdl:portType name="ws4flexPortType">
102. −
103. <wsdl:operation name="sum">
104. <wsdl:input name="sumRequest" message="tns:sumRequest">
105.     </wsdl:input>
106. <wsdl:output name="sumResponse" message="tns:sumResponse">
107.     </wsdl:output>
108. </wsdl:operation>
109. −
110. <wsdl:operation name="test">
111. <wsdl:input name="testRequest" message="tns:testRequest">
112.     </wsdl:input>
113. <wsdl:output name="testResponse" message="tns:testResponse">
114.     </wsdl:output>
115. </wsdl:operation>
116. −
117. <wsdl:operation name="sum1">
118. <wsdl:input name="sum1Request" message="tns:sum1Request">
119.     </wsdl:input>
120. <wsdl:output name="sum1Response" message="tns:sum1Response">
121.     </wsdl:output>
122. </wsdl:operation>
123. </wsdl:portType>
124. −
125. <wsdl:binding name="ws4flexHttpBinding" type="tns:ws4flexPortType">
126. <wsdlsoap:binding style="document" transport="http://schemas.xmlsoap.org/soap/http"/>
127. −
128. <wsdl:operation name="sum">
129. <wsdlsoap:operation soapAction=""/>
130. −
131. <wsdl:input name="sumRequest">
132. <wsdlsoap:body use="literal"/>
133. </wsdl:input>
134. −
135. <wsdl:output name="sumResponse">
136. <wsdlsoap:body use="literal"/>
137. </wsdl:output>
138. </wsdl:operation>
139. −
140. <wsdl:operation name="test">
141. <wsdlsoap:operation soapAction=""/>
142. −
143. <wsdl:input name="testRequest">
144. <wsdlsoap:body use="literal"/>
145. </wsdl:input>
146. −
147. <wsdl:output name="testResponse">
148. <wsdlsoap:body use="literal"/>
149. </wsdl:output>
150. </wsdl:operation>
151. −
152. <wsdl:operation name="sum1">
153. <wsdlsoap:operation soapAction=""/>
154. −
155. <wsdl:input name="sum1Request">
156. <wsdlsoap:body use="literal"/>
157. </wsdl:input>
158. −
159. <wsdl:output name="sum1Response">
160. <wsdlsoap:body use="literal"/>
161. </wsdl:output>
162. </wsdl:operation>
163. </wsdl:binding>
164. −
165. <wsdl:service name="ws4flex">
166. −
167. <wsdl:port name="ws4flexHttpPort" binding="tns:ws4flexHttpBinding">
168. <wsdlsoap:address location="http://localhost:8888/ws4flex/services/ws4flex"/>
169. </wsdl:port>
170. </wsdl:service>
171. </wsdl:definitions>

这里定义了三个方法：

test()是最简单的测试通信。sum(int a,int b)测试传入两个参数时，通信问题。sum1(String[] s)测试数组参数是否能被正确传递。

 

下面，我们来看看flex工程。

1. <?xml version="1.0" encoding="utf-8"?>
2. <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" fontSize="13">
3.     <mx:Script>
4.         <![CDATA[
5.             import mx.rpc.events.ResultEvent;//引用ResultEvent类
6.             import mx.controls.Alert;//引用Alert类
7.             import Model4ws;
8.             private function wsHandle(e:ResultEvent):void
9.             {
10.                 lbl.text=e.result as String;//显示返回数据
11.             }
12.             private function testclk():void{
13.                 ws4flex.test.send();
14.             }
15.             private function sumclk():void{
16.                 ws4flex.sum.send();
17.             }
18.             private function sum1clk():void{
19.                 ws4flex.sum1.send();
20.             }
21.         ]]>
22.     </mx:Script>    
23.     
24.     <mx:Panel title="和java的WebService交互" horizontalAlign="center" verticalAlign="middle" width="433" height="196">
25.         <mx:Label id="given" textAlign="center" width="378" height="24" text=""/>
26.         <mx:Label id="lbl" textAlign="center" width="378" height="24"/>
27.     </mx:Panel>
28.     
29.     <mx:WebService id="ws4flex" showBusyCursor="true"
30.         wsdl="http://localhost:8888/ws4flex/services/ws4flex?wsdl"
31.         fault="Alert.show(event.fault.faultString, 'Error')">
32.         
33.         <mx:operation name="test" result="wsHandle(event);">
34.         </mx:operation>
35.         
36.         <mx:operation name="sum" result="wsHandle(event);">
37.         <mx:request>
38.             <in0>1</in0>
39.             <in1>2</in1>
40.         </mx:request>
41.         </mx:operation>
42.         
43.         <mx:operation name="sum1" result="wsHandle(event);">
44.         <mx:request>
45.             <in0>[1,2,3,4,5]</in0>
46.         </mx:request>
47.         </mx:operation>     
48.      </mx:WebService>
49.     <mx:Button x="57" y="226" label="test" click="testclk()" fillAlphas="[1.0, 1.0]" fillColors="[#1BD8AE, #1BD8AE]"/>
50.     <mx:Button x="164" y="226" label="sum" click="sumclk()" fillAlphas="[1.0, 1.0]" fillColors="[#305EB3, #305EB3]" color="#BFDEE5"/>
51.     <mx:Button x="281" y="226" label="sum1" click="sum1clk()" borderColor="#E9C935" fillAlphas="[1.0, 1.0]" fillColors="[#F05408, #F05408]"/>    
52. </mx:Application>

mx:WebService 用来定义webservice调用。mx:operation 定义webservice中调用的方法。mx:request 定义该方法需要哪些参数

 

最后看看效果