SOAP方式发送XML调用Web Services

    客户有一个需求,发布了一个Web Services,其中一个Function,输入的请求参数是Soap协议的XML文件,通过请求后.会输出一个XML格式的文件.

    涉及的技术有Freemaker.

    基本的思路是:通过一个连接请求,发送soap方式的XML请求文档,然后通过读取流的方式,返回结果.

 

private String serviceAddress = "http://localhost:8080/axis/services/Corticon";
private URL webServiceUrl;

@PostConstruct
private void init() {
	try {
		webServiceUrl = new URL(serviceAddress);
	} catch (MalformedURLException e) {
		e.printStackTrace();
	}
}
public String processRequest(DialogDecisionInput input) {
		
		try {
			cfg.setClassForTemplateLoading(this.getClass(), "/");
			cfg.setObjectWrapper(new DefaultObjectWrapper());
			cfg.setNumberFormat("################");

			// Get and config the connection.
			HttpURLConnection conn;
			conn = (HttpURLConnection) webServiceUrl.openConnection();

			conn.setDoOutput(true);
			conn.setDoInput(true);
			conn.setRequestMethod("POST");
			conn.setUseCaches(false);
			conn.setRequestProperty("Content-Type", "text/xml; charset=utf-8");
			conn.setRequestProperty("SOAPAction", "Corticon");
			

			Map root = new HashMap();
			root.put("model", input);			

			Template template = cfg.getTemplate("soapRequest.ftl");

			OutputStream os = conn.getOutputStream();
			Writer out = new BufferedWriter(new OutputStreamWriter(os, "utf-8"));

			template.process(root, out);

			out.flush();
			out.close();
			

			// Get the soap response.
			InputStream is = conn.getInputStream();
			String rc = IOUtils.toString(is);			
			return rc;
		} catch (TemplateException e) {
			StringWriter sw = new StringWriter();
			e.printStackTrace(new PrintWriter(sw));
			corticonlogger.error("[E00004]" + E00004 + "\n" + sw);
		} catch (IOException e1) {
			StringWriter sw = new StringWriter();
			e1.printStackTrace(new PrintWriter(sw));
			corticonlogger.error("[E00003]" + E00003 + "\n" + sw);
		}		
		return null;
	}

   呵呵,因为Freemarker的process默认是要写到一个文件当中.增加了IO的操作,比较慢,所以我的另外一篇文章也写了:

Freemarker输出字符串而不是文件

  或者参考如下的代码:

 

private String serviceAddress = "http://localhost:8080/axis/services/Corticon";
private URL webServiceUrl;
@PostConstruct
	private void init() {
		try {
			webServiceUrl = new URL(serviceAddress);
		} catch (MalformedURLException e) {
			e.printStackTrace();
		}
	}

	public DialogDecisionService() {
		// Get and config the connection.
		cfg.setClassForTemplateLoading(this.getClass(), "/");
		cfg.setObjectWrapper(new DefaultObjectWrapper());
		cfg.setNumberFormat("################");
		cfg.setCacheStorage(new freemarker.cache.MruCacheStorage(20, 250));
	}
public String processRequest(DialogDecisionInput input) {		
		try {			
			HttpURLConnection conn;
			conn = (HttpURLConnection) webServiceUrl.openConnection();

			conn.setDoOutput(true);
			conn.setDoInput(true);
			conn.setRequestMethod("POST");
			conn.setUseCaches(false);
			conn.setRequestProperty("Content-Type", "text/xml; charset=utf-8");
			conn.setRequestProperty("SOAPAction", "Corticon");			

			Map root = new HashMap();
			root.put("model", input);			

			Template template = cfg.getTemplate("soapRequest.ftl");
			/**
			 * StringWriter instead of Writer
			 * Class StringWriter contains a StringBuffer which can be rendered toString
			 * modify by heweiya
			 */
			OutputStream os = conn.getOutputStream();			
			BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(os, "utf-8"));
			template.setEncoding("UTF-8");
			cfg.setDefaultEncoding("UTF-8");
			template.process(root, writer);			
			writer.flush();
			writer.close();			
			// Get the soap response.
			InputStream is = conn.getInputStream();
			String rc = IOUtils.toString(is);
			
			return rc;
		} catch (TemplateException e) {
			StringWriter sw = new StringWriter();
			e.printStackTrace(new PrintWriter(sw));
			corticonlogger.error("[E00004]" + E00004 + "\n" + sw);
		} catch (IOException e1) {
			StringWriter sw = new StringWriter();
			e1.printStackTrace(new PrintWriter(sw));
			corticonlogger.error("[E00003]" + E00003 + "\n" + sw);
		}
		corticonlogger.error("[E00004]" + E00004 + "\n");
		return null;
	}

 发送的XML文件格式如下:

<?xml version="1.0" encoding="UTF-8"?>

<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/" xmlns:xsd="http://www.w3.org/2001/XMLSchema">

  <SOAP-ENV:Body>

    <CorticonRequest xmlns="urn:Corticon" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" decisionServiceName="diabetes">

      <WorkDocuments>

        <D_diabetes id="D_diabetes_id_1">

          <currentPage>p_medInfo</currentPage>

          <dialogId>3</dialogId>

          <dialogInstanceId>771</dialogInstanceId>

          <displayTitle>Pediatric Diabetes Screening Tool</displayTitle>

          <function>screen</function>

				 <lastQuestionAnswered>q_sex</lastQuestionAnswered>

          <locale />

          <noOfChangedFlags>0</noOfChangedFlags>

          <productLine>Loan</productLine>

          <refId>D-00012</refId>

          <region>region 1</region>

          <sessionId xsi:nil="1" />

          <version>1</version>

	          

				           <p_medInfo id="P_medInfo_id_1">

				            <displayTitle>Diabetes Screening - Info</displayTitle>

				            <helpText></helpText>

				            <pageId>7</pageId>

				            <refId>D-00012</refId>

				            <version>1</version>

										            <q_sex id="Q_sex_id_1">										            	

										              <displayFlag>true</displayFlag>	              										              

										              <helpText></helpText>

										              <questionId>41</questionId>

										              <questionText>Sex</questionText>

										              <refId>D-00012</refId>

										              		<responseType>Custom</responseType>

										              		 <uiControl>Radio Button</uiControl>

										              <sequence>1.2</sequence>									             

										              <version>1</version>										              

										              <pageQuestionId>44</pageQuestionId>

										              		  	<response id="R_sex_id_13" Type="R_sex">												             

												              	<responseId>74</responseId>											               

												                <respEnabled xsi:nil="1" />

												                <respLabel>Female</respLabel>

												                <respSelected>false</respSelected>

												                <respSeq>3</respSeq>											                

												                <respValue>F</respValue>

												              </response>										              		  	

										              		  	<response id="R_sex_id_22" Type="R_sex">												             

												              	<responseId>73</responseId>											               

												                <respEnabled xsi:nil="1" />

												                <respLabel>Male</respLabel>

												                <respSelected>true</respSelected>

												                <respSeq>2</respSeq>											                

												                <respValue>M</respValue>

												              </response>										              		  	

										            </q_sex>										           

										            									            

										            								            

													        <q_medIntro id="Q_medIntro_id_7">												              

																  <displayFlag>true</displayFlag>																   

													              <helpText></helpText>

													              <questionId>39</questionId>

													              <questionText>We are asking a few extra questions in order to assess special risks in our new members.  I would like to get some additional information about your child.  This will just take a couple of minutes.</questionText>

													              <refId>D-00012</refId>

													              	 <responseType>No response</responseType>

													              

													              	 <uiControl xsi:nil="1" />

													              <version>1</version>

													              <sequence>1</sequence>

													              <pageQuestionId>40</pageQuestionId>

													              

															               <response id="R_medIntro_id_101" Type="R_medIntro">             

																			 <respEnabled xsi:nil="1" />

																			<respLabel xsi:nil="1" />

																			<respSelected xsi:nil="1" /><respValue></respValue>

															              </response>

													            </q_medIntro>													        

													        <q_age id="Q_age_id_8">												              

																  <displayFlag>true</displayFlag>																   

													              <helpText></helpText>

													              <questionId>40</questionId>

													              <questionText>Current Age</questionText>

													              <refId>D-00012</refId>

													              		<responseType>Custom</responseType>

													              

													              		 <uiControl>Text Box</uiControl>

													              <version>1</version>

													              <sequence>1.1</sequence>

													              <pageQuestionId>45</pageQuestionId>

													              

															               <response id="R_age_id_102" Type="R_age">           

																			 <respEnabled xsi:nil="1" />

																			<respLabel xsi:nil="1" />

																			<respSelected xsi:nil="1" /><respValue>0</respValue>

															              </response>

													            </q_age>													        

													        <q_weight id="Q_weight_id_9">												              

																  <displayFlag>true</displayFlag>																   

													              <helpText></helpText>

													              <questionId>42</questionId>

													              <questionText>Weight</questionText>

													              <refId>D-00012</refId>

													              		<responseType>Custom</responseType>

													              

													              		 <uiControl>Text Box</uiControl>

													              <version>1</version>

													              <sequence>1.3</sequence>

													              <pageQuestionId>43</pageQuestionId>

													              

															               <response id="R_weight_id_103" Type="R_weight">           

																			 <respEnabled xsi:nil="1" />

																			<respLabel xsi:nil="1" />

																			<respSelected xsi:nil="1" /><respValue>0</respValue>

															              </response>

													            </q_weight>													        

													        <q_heightFeet id="Q_heightFeet_id_10">												              

																  <displayFlag>true</displayFlag>																   

													              <helpText></helpText>

													              <questionId>43</questionId>

													              <questionText>Height - Feet</questionText>

													              <refId>D-00012</refId>

													              		<responseType>Custom</responseType>

													              

													              		 <uiControl>Text Box</uiControl>

													              <version>1</version>

													              <sequence>1.4</sequence>

													              <pageQuestionId>42</pageQuestionId>

													              

															               <response id="R_heightFeet_id_104" Type="R_heightFeet">           

																			 <respEnabled xsi:nil="1" />

																			<respLabel xsi:nil="1" />

																			<respSelected xsi:nil="1" /><respValue>0</respValue>

															              </response>

													            </q_heightFeet>													        

													       										              

																  <displayFlag>true</displayFlag>																   

													              <helpText></helpText>

													              <questionId>44</questionId>

													              <questionText>Height - Inches</questionText>

													              <refId>D-00012</refId>

													              		<responseType>Custom</responseType>

													              

													              		 <uiControl>Text Box</uiControl>

													              <version>1</version>

													              <sequence>1.5</sequence>

													              <pageQuestionId>41</pageQuestionId>

													              

															               <response id="R_heightInches_id_105" Type="R_heightInches">           

																			 <respEnabled xsi:nil="1" />

																			<respLabel xsi:nil="1" />

																			<respSelected xsi:nil="1" /><respValue>0</respValue>

															              </response>

													            </q_heightInches>													        

			          </p_medInfo>  

          

            <displayTitle></displayTitle>

            <helpText></helpText>

            <pageId>9</pageId>

            <refId>D-00012</refId>

            <version>1</version>

            <q_findingsIntro id="Q_findingsIntro_id_9">

           	  <displayFlag xsi:nil="1" />                                 

              <helpText></helpText>

              <questionId>50</questionId>

              <questionText>Recap:</questionText>

               <refId>D-00012</refId>

													              	 <responseType>No response</responseType>

													              

													              	 <uiControl xsi:nil="1" />

              <version>1</version>

              <sequence>1</sequence>

              <pageQuestionId>60</pageQuestionId>



	              <response id="R_findingsIntro_id_103" Type="R_findingsIntro">              

					 <respEnabled xsi:nil="1" />

					<respLabel xsi:nil="1" />

					<respSelected xsi:nil="1" />

	                <respValue></respValue>

	              </response>

            </q_findingsIntro>

            
          </p_findings>

        </D_diabetes>

      </WorkDocuments>

    </CorticonRequest>

  </SOAP-ENV:Body>

</SOAP-ENV:Envelope>