Mysql 特殊字符处理
import java.util.HashMap;import java.util.Map;/** * User: pdc738 Date: 06.22, 2010 Time: 3:36:20 PM * To Encoder special character. * If you want to insert binary data into a string column (such as a BLOB column), the following characters must be represented by escape sequences. NUL NUL byte (0x00). Represent this character by “\0” (a backslash followed by an ASCII “0” character). \ Backslash (ASCII 92). Represent this character by “\\”. ' Single quote (ASCII 39). Represent this character by “\'”. " Double quote (ASCII 34). Represent this character by “"”. * Within a string, certain sequences have special meaning unless the NO_BACKSLASH_ESCAPES SQL mode is enabled. Each of these sequences begins with a backslash (“\”), known as the escape character. MySQL recognizes the following escape sequences in referencesMap */public class MYSQLEncoder { private static Map<String,String> referencesMap = new HashMap<String,String>(); static{ referencesMap.put("'","\\'"); referencesMap.put(""","\\""); referencesMap.put("\","\\\"); referencesMap.put("\n","\\\n"); referencesMap.put("\0","\\\0"); referencesMap.put("\b","\\\b"); referencesMap.put("\r","\\\r"); referencesMap.put("\t","\\\t"); referencesMap.put("\f","\\\f"); } //escape sql tag with the source code.public static String encode(String source) {if (source == null)return "";StringBuffer sbuffer = new StringBuffer(source.length());for (int i = 0; i < source.length(); i++) {String c = source.substring(i,i+1);//System.out.println("c=" + c);//System.out.println(referencesMap.get(c));if (referencesMap.get(c) != null) {sbuffer.append(referencesMap.get(c));} else {sbuffer.append(c);}}return sbuffer.toString();}public static void main(String[] args){String tt = encode("They'are "ok". \\a");System.out.print(tt);}}?