mysql - decode character from unicode using java -


i unable insert chinese character mysql. though of doing this. have excel sheet have chinese characters. 秀昭 , on.

i got them converted unicode representations \uxxx using below code got so, , stored in mysql.

private static string escapenonascii(string str) {     list<string> arr = new arraylist<string>();     stringbuilder retstr = new stringbuilder();     (int = 0; < str.length(); i++) {         int cp = character.codepointat(str, i);         system.out.println("cp="+cp);         int charcount = character.charcount(cp);         if (charcount > 1) {             += charcount - 1; // 2.             if (i >= str.length()) {                 throw new illegalargumentexception("truncated unexpectedly");             }         }          if (cp < 128) {             retstr.appendcodepoint(cp);         } else {             retstr.append(string.format("\\u%x", cp));             arr.add(string.format("\\\\u%x", cp));         }     }     return retstr.tostring(); } 

the values have been stored properly. need display them back. when tried

system.out.println("\u8bf7\u5728\u6b64\u5904"); 

it gives me proper output like,

`请在此` 

but when read db , did like

system.out.println(rs.getstring(1).trim().tostring() + " db"); 

it printed

`\u8bf7\u5728\u6b64\u5904` 

what might problem? have missed anything? please help.

escaped characters processed prior compiling. store , retrieve data database, have consider 2 things: make sure data read had correct encoding. , when printing data correct encoding set. if read data on windows machine, posible have use cp* encodings. use inputstreamreader , set charset. have data in jvm. internal encoding utf-16. use type 4 jdbc, not have worry encoding, except database needs encoding capable store data. utf-8 or unicode trick. consult jdbc documentation properties set. have set encoding explicitly (jdbc:mysql://localhost:3306/?useunicode=yes&characterencoding=utf-8). when outputting data, output must have specific encoding. normally, jvm runs default system char set need one, example when rendering html file.


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