java 回車替換換行

   
   
  
  
          
 
           
 
            
 
             
 
            
 
            
 
             
 
              //第一種方式 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             
 
              import java.util.regex.Pattern; 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             
 
              import java.util.regex.Matcher; 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             
 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             

               ... 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             
 
              // 4 different combinaisons 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             

               Pattern CRLF = Pattern.compile( 
              "(\r\n|\r|\n|\n\r)"); 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             

               Matcher m = CRLF.matcher(myString); 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             
 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             
 
              if (m.find()) { 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             

               newString = m.replaceAll( 
              "<br>"); 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             

               } 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             
 
              //第二種方式 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             
 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             

               newString = myString.replaceAll( 
              "(\r\n|\r|\n|\n\r)", 
              "<br>"); 
             
 
            
 
          
  
  
 
 
         

測試

   
   
  
  
          
 
           
 
            
 
             
 
            
 
            
 
             
 
              import java.util.regex.Matcher; 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             
 
              import java.util.regex.Pattern; 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             
 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             
 
              public 
              class StringTest { 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             
 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             
 
              public static String sss(String myString){ 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             

               String newString= 
              null; 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             

               Pattern CRLF = Pattern.compile( 
              "(\r\n|\r|\n|\n\r)"); 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             

               Matcher m = CRLF.matcher(myString); 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             
 
              if (m.find()) { 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             

               newString = m.replaceAll( 
              "<br>"); 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             

               } 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             
 
              return newString; 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             

               } 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             
 
              /** 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             
 
               * @param args 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             
 
               */ 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             
 
              public static void main(String[] args) { 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             

               String aaa= 
              "sdfsfdsfsdf\r\n,dsfsdfsdf\r\n"; 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             
 
              //aaa.replace("s", "x"); 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             

               String newStr=sss(aaa); 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             

               System.out.println(newStr); 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             

               } 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             
 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             

               }