Java中XML数据解析-优快云博客

本文链接：https://blog.youkuaiyun.com/modosxiaoyao/article/details/6691152

通过正则表达式在典型的XML文件中选择需要保存的数据：

<Sms>
<MobileNumber>你的电话号码</MobileNumber> <!--
<Body>卢队:你有课吗？</Body>
<Type>1</Type>
<MessageType>0</MessageType>
<Read>1</Read>
<Status>-1</Status>
<ReportDate>0</ReportDate>
<SendDate>1257348421</SendDate>
<PartNumber>1</PartNumber>
<ID>2103</ID>
</Sms>

上面我需要的数据是

<Body>

之前由于写习惯了php中对于任意字符的判断(.*?)(.+?)导致中文弄不出来
贴代码：

/*
* M8 SMS data converter
*/
import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class MyFileFilter {
	public static void main(String[] args) throws Exception {		
		Pattern phone = Pattern.compile("<MobileNumber>(.*)</MobileNumber>", Pattern.DOTALL);
		Pattern body = Pattern.compile("<Body>(.*)</Body>", Pattern.DOTALL);
		Pattern date = Pattern.compile("<SendDate>(.*)</SendDate>", Pattern.DOTALL);
		Matcher matcher;

		//文件需要在工程目录
		File file = new File("jonny.txt");  
		BufferedReader reader = null;  
		try {			
			reader = new BufferedReader(new FileReader(file));  
			String data = null;  
			while ((data = reader.readLine()) != null){  
				//显示行号  
				
				if((matcher = phone.matcher(data)).find())
					System.out.println("Phone: "+matcher.group(1));
				else if((matcher = body.matcher(data)).find()){
					System.out.println("Body: "+matcher.group(1));
				}					
				else if((matcher = date.matcher(data)).find()){
					//System.out.println("Date: "+matcher.group(1));
					System.out.println("Date: "+getDate(matcher.group(1)));
					}
				} 
			reader.close();  
			} catch (IOException e) { 			
				e.printStackTrace();
				} finally {  
					if (reader != null){  
						try {  
							reader.close();  
							} catch (IOException e1) {
								
							}  
						}  
					} 
		} 
	
	public static String getDate(String unixDate) { 
		SimpleDateFormat fm = new SimpleDateFormat("dd/MM/yyyy HH:mm:ss"); 
		long unixLong = 0; 
		String date = ""; 
		try { 
			unixLong = Long.parseLong(unixDate) * 1000; 
			} catch(Exception ex) { 
				System.out.println("String转换Long错误，请确认数据可以转换！"); 
				}
		
		try { 
			date = fm.format(unixLong);
			} catch(Exception ex) { 
				System.out.println("String转换Date错误，请确认数据可以转换！"); 
				} 
		return date;
		}
	}

m8短消息保存到电脑文件