Idea调用WebService的关键步骤和注意事项

        <!--
             使用apache的httpclient发送http,需要引入httpclient依赖;
             使用OMElement需要引入axis2-transport-http依赖;改以来本身带有httpclient依赖,所以
                 我们不在需要单独引入httpclient依赖了
         -->
        <dependency>
            <groupId>org.apache.axis2</groupId>
            <artifactId>axis2-transport-http</artifactId>
            <version>1.7.8</version>
        </dependency>

package com.smart.util;

import org.apache.axiom.om.OMElement;
import org.apache.axiom.om.OMXMLBuilderFactory;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.util.EntityUtils;
import org.junit.runner.RunWith;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.http.HttpHeaders;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.StringHttpMessageConverter;
import org.springframework.test.context.junit4.SpringRunner;
import org.springframework.web.client.RestTemplate;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.stream.XMLStreamException;
import javax.xml.xpath.XPath;
import javax.xml.xpath.XPathExpressionException;
import javax.xml.xpath.XPathFactory;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.StringReader;
import java.nio.charset.StandardCharsets;
import java.util.List;

@RunWith(SpringRunner.class)
@SpringBootTest
public class AbcAxis2DemoApplicationUtils {
	public static String doPost(String partNo) throws  IOException {
		// webservice的wsdl地址
		final String wsdlURL = ""
		// 设置编码。(因为是直接传的xml,所以我们设置为text/xml;charset=utf8)
		final String contentType = "text/xml;charset=utf8";
		/// 拼接要传递的xml数据(注意:此xml数据的模板我们根据wsdlURL从SoapUI中获得,只需要修改对应的变量值即可)
		StringBuffer xMLcontent = new StringBuffer("");
		xMLcontent.append("<soapenv:Envelope xmlns:soapenv=\"http://schemas.xmlsoap.org/soap/envelope/\" xmlns:urn=\"urn:DefaultNamespace\">\n");
		xMLcontent.append("   <soapenv:Header/>\n");
		xMLcontent.append("   <soapenv:Body>\n");
		xMLcontent.append("     <urn:字段1>Shanghai</urn:字段1>\n");
		xMLcontent.append("     <urn:字段2>" + "TAN2921" + "</urn:字段2>\n");
		xMLcontent.append("   </soapenv:Body>\n");
		xMLcontent.append("</soapenv:Envelope>");

		// 调用工具类方法发送http请求
		String responseXML = HttpSendUtil.doHttpPostByHttpClient(wsdlURL, contentType, xMLcontent.toString());
		// 当然我们也可以调用这个工具类方法发送http请求
		// String responseXML = HttpSendUtil.doHttpPostByRestTemplate(wsdlURL, contentType, xMLcontent.toString());

		// 利用axis2的OMElement,将xml数据转换为OMElement
		OMElement omElement = OMXMLBuilderFactory
				.createOMBuilder(new ByteArrayInputStream(responseXML.getBytes()), "utf-8").getDocumentElement();
		try {
			DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
			factory.setNamespaceAware(true); // 设置为true以处理命名空间
			DocumentBuilder builder = factory.newDocumentBuilder();
			InputSource inputSource = new InputSource(new StringReader(responseXML));
			Document document = builder.parse(inputSource);

			// 获取所有名为"OUTPUT_SHIPTOPARTYReturn"的元素，并考虑命名空间
			NodeList nodeList = document.getElementsByTagNameNS("urn:DefaultNamespace", "OUTPUT_SHIPTOPARTYReturn");

			for (int i = 0; i < nodeList.getLength(); i++) {
				Element element = (Element) nodeList.item(i);
				// 检查元素是否有文本内容（即非空且非自闭合标签）
				if (element.hasChildNodes() && element.getFirstChild().getNodeType() == Node.TEXT_NODE) {
					String textContent = element.getTextContent();
					System.out.println("Extracted value: " + textContent);
					return textContent;
				}
			}

		} catch (ParserConfigurationException | SAXException | IOException e) {
			e.printStackTrace();
		}

		return null;
	}

	public static String getNodeValue(Document document, String nodePaht) {
		XPathFactory xpfactory = XPathFactory.newInstance();
		XPath path = xpfactory.newXPath();
		String servInitrBrch = "";
		try {
			servInitrBrch = path.evaluate(nodePaht, document);
		} catch (XPathExpressionException e) {
			e.printStackTrace();
		}
		return servInitrBrch;
	}



	public static Document StringTOXml(String str) {

		StringBuilder sXML = new StringBuilder();
		sXML.append(str);
		DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
		Document doc = null;
		try {
			InputStream is = new ByteArrayInputStream(sXML.toString().getBytes("utf-8"));
			doc = dbf.newDocumentBuilder().parse(is);
			is.close();
		} catch (Exception e) {
			e.printStackTrace();
		}
		return doc;
	}
}
/**
 * HTTP工具类
 *
 * @author JustryDeng
 * @DATE 2018年9月22日 下午10:29:08
 */
class HttpSendUtil {

	/**
	 * 使用apache的HttpClient发送http
	 *
	 * @param wsdlURL
	 *            请求URL
	 * @param contentType
	 *            如:application/json;charset=utf8
	 * @param content
	 *            数据内容
	 * @DATE 2018年9月22日 下午10:29:17
	 */
	static String doHttpPostByHttpClient(final String wsdlURL, final String contentType, final String content)
			throws ClientProtocolException, IOException {
		// 获得Http客户端(可以理解为:你得先有一个浏览器;注意:实际上HttpClient与浏览器是不一样的)
		CloseableHttpClient httpClient = HttpClientBuilder.create().build();
		// 创建Post请求
		HttpPost httpPost = new HttpPost(wsdlURL);
		StringEntity entity = new StringEntity(content.toString(), "UTF-8");
		// 将数据放入entity中
		httpPost.setEntity(entity);
		httpPost.setHeader("Content-Type", contentType);
		// 响应模型
		CloseableHttpResponse response = null;
		String result = null;
		try {
			// 由客户端执行(发送)Post请求
			response = httpClient.execute(httpPost);
			// 从响应模型中获取响应实体
			// 注意:和doHttpPostByRestTemplate方法用的不是同一个HttpEntity
			org.apache.http.HttpEntity responseEntity = response.getEntity();
			System.out.println("响应ContentType为:" + responseEntity.getContentType());
			System.out.println("响应状态为:" + response.getStatusLine());
			if (responseEntity != null) {
				result = EntityUtils.toString(responseEntity);
				System.out.println("响应内容为:" + result);
			}
		} finally {
			// 释放资源
			if (httpClient != null) {
				httpClient.close();
			}
			if (response != null) {
				response.close();
			}
		}
		return result;
	}

	/**
	 * 使用springframework的RestTemplate发送http
	 *
	 * @param wsdlURL
	 *            请求URL
	 * @param contentType
	 *            如:application/json;charset=utf8
	 * @param content
	 *            数据内容
	 * @DATE 2018年9月22日 下午10:30:48
	 */
	static String doHttpPostByRestTemplate(final String wsdlURL, final String contentType, final String content) {
		// http使用无参构造;https需要使用有参构造
		RestTemplate restTemplate = new RestTemplate();
		// 解决中文乱码
		List<HttpMessageConverter<?>> converterList = restTemplate.getMessageConverters();
		converterList.remove(1);
		HttpMessageConverter<?> converter = new StringHttpMessageConverter(StandardCharsets.UTF_8);
		converterList.add(1, converter);
		restTemplate.setMessageConverters(converterList);
		// 设置Content-Type
		HttpHeaders headers = new HttpHeaders();
		headers.remove("Content-Type");
		headers.add("Content-Type", contentType);
		// 数据信息封装
		// 注意:和doHttpPostByHttpClient方法用的不是同一个HttpEntity
		org.springframework.http.HttpEntity<String> formEntity = new org.springframework.http.HttpEntity<String>(
				content, headers);
		String result = restTemplate.postForObject(wsdlURL, formEntity, String.class);
		return result;
	}
}