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java 正则表达式示例

admin 11月 23, 2020 0 

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package test.com;

import static org.junit.Assert.*;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

import org.junit.Test;
/**
 * Unit Test for domain regular expression
 * @author Joe
 */
public class DomainRegexTester {

    private final static Pattern mainDomainPattern = Pattern.compile("(m\.)?((www|en|pt|es|ru)\.)?okchem\.com");
 
 private final static Pattern vipDomainPattern = Pattern.compile("(\w{3,30})\.(m\.)?((en|pt|es|ru)\.)okchem\.com");
   
 public static boolean match(String regex, String text) {
     Pattern pattern = Pattern.compile(regex);
        Matcher matcher = pattern.matcher(text);
     
     return matcher.matches();
    }
    
 @Test
    public void testMatchGroup_NonVIP_PC() {        
     Matcher pcMatcherWww = mainDomainPattern.matcher("www.okchem.com");
      if(pcMatcherWww.find()) {
            assertTrue("www".equals(pcMatcherWww.group(3)));
         assertTrue("www.".equals(pcMatcherWww.group(2)));
        }
        
     Matcher pcMatcherEn = mainDomainPattern.matcher("en.okchem.com");
        if(pcMatcherEn.find()) {
         assertTrue(pcMatcherEn.group(1)==null);
          assertTrue("en".equals(pcMatcherEn.group(3)));
       }
        
     
     Matcher mobileMatcherEn = mainDomainPattern.matcher("m.okchem.com");
     if(mobileMatcherEn.find()) {
         assertTrue("m.".equals(mobileMatcherEn.group(1)));
       } 
       
     Matcher mobileMatcherEs = mainDomainPattern.matcher("m.es.okchem.com");
      if(mobileMatcherEs.find()) {
         assertTrue("es".equals(mobileMatcherEs.group(3)));
           assertTrue("es.".equals(mobileMatcherEs.group(2)));
      }  
     
  }
    
 
 @Test
    public void testMainDomainMatch() {     
    assertTrue(matchMain("www.okchem.com"));
     assertTrue(matchMain("pt.okchem.com"));
      assertTrue(matchMain("es.okchem.com"));
      assertTrue(matchMain("pt.okchem.com"));
      assertTrue(matchMain("ru.okchem.com"));
      
     assertTrue(matchMain("m.okchem.com"));
       assertTrue(matchMain("m.pt.okchem.com"));
    assertTrue(matchMain("m.es.okchem.com"));
    assertTrue(matchMain("m.ru.okchem.com"));      
      
     assertTrue(matchMain("m.www.okchem.com"));
       assertFalse(matchMain("m.www.jiu-shu.com"));
  }
    
 public void testVipDomainmatch() {
       /*** VIP store domain ***/
       assertTrue(matchVIP("vipcode.ru.okchem.com"));
       assertTrue(matchVIP("vipcode.en.okchem.com"));
       assertTrue(matchVIP("vipcode.es.okchem.com"));
       assertTrue(matchVIP("vipcode.pt.okchem.com"));

      assertTrue(matchVIP("vipcode.m.pt.okchem.com"));
     assertTrue(matchVIP("vipcode.m.ru.okchem.com"));
     assertTrue(matchVIP("vipcode.m.en.okchem.com"));
     assertTrue(matchVIP("vipcode.m.es.okchem.com"));

        assertFalse(matchVIP("v.pt.okchem.com"));// vipcode is too short
     assertTrue(matchVIP("abcdefghij12345678901234567980.en.okchem.com"));// vipcode is just 30
       assertFalse(matchVIP("abcdefghij123456789012345679801.pt.okchem.com"));// vipcode is too short

      assertFalse(matchVIP("v.m.pt.okchem.com"));// vipcode is too short
       assertTrue(matchVIP("abcdefghij12345678901234567980.m.pt.okchem.com"));// vipcode is just 30
     assertFalse(matchVIP("abcdefghij123456789012345679801.m.pt.okchem.com"));// vipcode is too short
 }
    
 public static boolean matchMain(String text) {
       Matcher matcher = mainDomainPattern.matcher(text);
       return matcher.matches();
    }
    public static boolean matchVIP(String text) {
        Matcher matcher = vipDomainPattern.matcher(text);
        return matcher.matches();
    }
    
}
 
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package test.com;

import static org.junit.Assert.*;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

import org.junit.Test;
/**
 * Unit Test for domain regular expression
 * @author Joe
 */
public class DomainRegexTester {

  private final static Pattern pattern = Pattern.compile("(\w{3,30}\.)?(m\.)?((www|en|pt|es|ru)\.)?okchem\.com");
  
 
 public static boolean match(String regex, String text) {
     Pattern pattern = Pattern.compile(regex);
        Matcher matcher = pattern.matcher(text);
     
     return matcher.matches();
    }
    
 @Test
    public void testMatchGroup_NonVIP_PC() {        
     Matcher matcher1 = pattern.matcher("www.okchem.com");
        if(matcher1.find()) {
            assertTrue("www.".equals(matcher1.group(1)));
            assertTrue(matcher1.group(2)==null);
         assertTrue(matcher1.group(3)==null);
         assertTrue(matcher1.group(4)==null);
     }
        
     Matcher matcher2 = pattern.matcher("en.okchem.com");
     if(matcher2.find()) {
            assertTrue("en".equals(matcher2.group(4)));
          assertTrue(matcher2.group(2)==null);
         assertTrue("en.".equals(matcher2.group(3)));
     }
    }
    @Test
    public void testMatchGroup() {      
     Matcher matcher = pattern.matcher("www.okchem.com");
     if(matcher.find()) {
         assertTrue("www.".equals(matcher.group(1)));
         assertTrue(matcher.group(2)==null);
          assertTrue(matcher.group(3)==null);
      }
    }
    
 @Test
    public void testParseLanguage_NonLanguage() throws Exception {      
     assertTrue(parseLanguageFromText("www.okchem.com")==null);
       assertTrue(parseLanguageFromText("m.okchem.com")==null);
 }
    @Test
    public void testParseLanguage_HasLanguage() throws Exception {      
     assertTrue("pt".equals(parseLanguageFromText("pt.okchem.com")));
     assertTrue("pt".equals(parseLanguageFromText("m.pt.okchem.com")));
       assertTrue("ru".equals(parseLanguageFromText("vipcode.ru.okchem.com")));
     assertTrue("pt".equals(parseLanguageFromText("vipcode.m.pt.okchem.com")));
   }
        
 @Test
    public void testDomainMatch() {     
    assertTrue(match("www.okchem.com"));
     assertTrue(match("pt.okchem.com"));
      assertTrue(match("es.okchem.com"));
      assertTrue(match("pt.okchem.com"));
      assertTrue(match("ru.okchem.com"));
      
     assertTrue(match("m.okchem.com"));
       assertTrue(match("m.pt.okchem.com"));
    assertTrue(match("m.es.okchem.com"));
    assertTrue(match("m.ru.okchem.com"));
    
     /*** VIP store domain ***/
       
     assertTrue(match("vipcode.ru.okchem.com"));
      assertTrue(match("vipcode.en.okchem.com"));
      assertTrue(match("vipcode.es.okchem.com"));
      assertTrue(match("vipcode.pt.okchem.com"));
      
     assertTrue(match("vipcode.m.pt.okchem.com"));
    assertTrue(match("vipcode.m.ru.okchem.com"));
    assertTrue(match("vipcode.m.en.okchem.com"));
    assertTrue(match("vipcode.m.es.okchem.com"));   
    
      assertFalse(match("vi.pt.okchem.com"));// vipcode is too short     
      assertTrue(match("abcdefghij12345678901234567980.en.okchem.com"));// vipcode is just 30
      assertFalse(match("abcdefghij123456789012345679801.pt.okchem.com"));// vipcode is too short
      
     assertFalse(match("vi.m.pt.okchem.com"));// vipcode is too short    
     assertTrue(match("abcdefghij12345678901234567980.m.pt.okchem.com"));// vipcode is just 30
    assertFalse(match("abcdefghij123456789012345679801.m.pt.okchem.com"));// vipcode is too short
    
     assertTrue(match("m.www.okchem.com"));
       assertFalse(match("m.www.jiu-shu.com"));
  }
    
 public static boolean match(String text) {
       Matcher matcher = pattern.matcher(text);
     return matcher.matches();
    }
    
 public static String parseLanguageFromText(String text) throws Exception {
       Matcher matcherPc = pattern.matcher(text);
       if(matcherPc.find()) {
           return matcherPc.group(4);
       }
        throw new Exception("Not Match");
    }
    
}
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