java,javascript,oracle development generate UUID or GUID method summary

1.Java development generate UUID or GUID method

// 36-bit, with dash  //  32-bit, remove the middle dash Java.util.UUID.randomUUID (). toString (). ReplaceAll ("-", "" ");

2.Javascript development generate UUID or GUID method

/*parameter Middle_line true: with an underscore false without an underscore*/function NewGuid (middle_line) {var length= 32; var result= "";  for(var i = 1; I <= length; i++) {var n= Math.floor (Math.random () * 16.0); if(N < 10) {result+=N; }             Else if(n = = 10) {result+ = "a"; }             Else if(n = = 11) {result+ = "B"; }             Else if(n = = 12) {result+ = "C"; }             Else if(n = = 13) {result+ = "D"; }             Else if(n = = 14) {result+ = "E"; }             Else if(n = = 15) {result+ = "F"; }             if(Middle_line && (i = = 8) | | (i = = 12) | | (i = = 16) | | (i = = 20)) {result+= "-"; }         }         returnresult; };

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3.Oracle development generate UUID or GUID method

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java,javascript,oracle development generate UUID or GUID method summary