springmvc 解析url 返回的xml数据

素颜马尾好姑娘i 2022-06-11 08:29 139阅读 0赞

@PostMapping(value = "")
    	public  ReturnEntity xmlParse(
    			@Param("ownerName")String ownerName,
    			@Param("ownerNo")String ownerNo
    			) throws Exception {
    		String path="http://www.baidu.con";
    		XmlParseUtil readXmlUtil = new XmlParseUtil();
    		XmlParseUtil instance = readXmlUtil.getInstance();
    		List<Poc> pocs =instance.xmlParse(path,ownerName,ownerNo);
    		if (instance.error.length()>=1) {
    			return new ReturnEntity(new ReturnBody(instance.error));
    		}
    		return new ReturnEntity(new ReturnBody(pocs));
    	}
    
    
    
     
     package com.jswhzl.lease.common.util;
    
    import java.io.IOException;
    import java.io.InputStream;
    import java.io.OutputStream;
    import java.net.HttpURLConnection;
    import java.net.URL;
    import java.util.ArrayList;
    import java.util.List;
    
    import javax.xml.parsers.DocumentBuilder;
    import javax.xml.parsers.DocumentBuilderFactory;
    import javax.xml.parsers.ParserConfigurationException;
    
    import org.w3c.dom.Document;
    import org.w3c.dom.Element;
    import org.w3c.dom.Node;
    import org.w3c.dom.NodeList;
    import org.xml.sax.SAXException;
    
    import com.jswhzl.lease.entity.user.Poc;
    
    
    
    
    /**读取xml指定标签内容
     * @author Administrator
     *
     */
    public class XmlParseUtil {
    	private static XmlParseUtil readXmlUtil = null;  
    	public static String error=null;
    	public static List<Poc>  pocs=null;
        public List<Poc> xmlParse(String path,String ownerName,String ownerNo) throws Exception{
    	  String params = "ownerName="+ownerName+"&ownerNo="+ownerNo;
    	  String encoding="UTF-8"; 
    	  byte [] data = params.getBytes(encoding); 
    	  URL url = new URL(path);  
          // No1.从网络中获取网页数据  
          HttpURLConnection conn = (HttpURLConnection) url.openConnection();
          conn.setRequestMethod("POST");
         // 设置文件类型
          conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
          conn.setRequestProperty("Content-Length",String.valueOf(data.length));
          conn.setConnectTimeout(5*1000); 
          conn.setDoInput(true);
          conn.setDoOutput(true);
          //设置超时时间
          
          conn.setReadTimeout(10*1000);
          conn.setConnectTimeout(10*1000);
          conn.setUseCaches(false);
          OutputStream outStream = conn.getOutputStream(); 
          outStream.write(data); 
          outStream.flush(); 
          outStream.close();
        
          if (conn.getResponseCode() != 200) throw new RuntimeException("请求url失败");  
          // No2.得到网络返回的输入流  
          InputStream inputStream = conn.getInputStream(); 
          
          //1.创建解析器工厂类：DocumentBuilderFactory  
          DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance(); 
          
          //创建DocumentBuilder对象进行创建Document对象
          DocumentBuilder documentBuilder = dbf.newDocumentBuilder();
          //创建一个Document对象
          Document document = documentBuilder.parse(inputStream);
          //获取根节点
          Element element = document.getDocumentElement();
          NodeList children = element.getElementsByTagName("houseOwnerInfo");
          if (children.getLength()<=0)throw new RuntimeException("查询结果不存在");  
    		pocs=new ArrayList<Poc>();
    		String diffgrId = "";
    		if (children != null) {
    			for (int i = 0; i < children.getLength(); i++) {
    				Node serverGroup = children.item(i);
    				diffgrId = serverGroup.getAttributes().getNamedItem("diffgr:id").getNodeValue();
    				Poc	poc=new Poc();
    				poc.setDiffgrId(diffgrId);
    				NodeList childNodes = serverGroup.getChildNodes();
    				for (int j = 0; j < childNodes.getLength(); j++) {
    					Node grandson = childNodes.item(j);
    					String tagName = grandson.getNodeName();
    					String textContent = grandson.getTextContent();
    					if(tagName.equals("ywzh")){
    						poc.setYwzh(textContent);
    					}
    					if(tagName.equals("syqr")){
    						poc.setSyqr(textContent);
    					}
    					if(tagName.equals("sfzh")){
    						poc.setSfzh(textContent);
    					}
    					
    					if(tagName.equals("QZBH")){
    						poc.setQZBH(textContent);
    					}
    					if(tagName.equals("zl")){
    						poc.setZl(textContent);
    					}
    					if(tagName.equals("FJZMJ")){
    						poc.setFJZMJ(textContent);
    					}
    					if(tagName.equals("ZSYSBH")){
    						poc.setZSYSBH(textContent);
    					}
    				}
    				pocs.add(poc);
    			}
    		}
    		 conn.disconnect();
    		 readXmlUtil=null;
    	return pocs;	
    	  
      }
    
    
    	
    
    	/** 
         *  
         * @throws IOException 
    	 * @throws SAXException 
    	 * @throws ParserConfigurationException 
    	 * @function:获得单例 
         */  
      public static XmlParseUtil getInstance() throws ParserConfigurationException, SAXException, IOException  
        {  
            if(readXmlUtil==null)  
            {  
                synchronized (XmlParseUtil.class)   
                {  
                    if(readXmlUtil==null) {  
                    	readXmlUtil = new XmlParseUtil();  
                    }  
                }  
            }  
            return readXmlUtil;  
        }  
    
    	
    	
    }