工具类：unicode 转换成中文

忘是亡心i 2024-03-22 13:38 42阅读 0赞

import org.apache.commons.lang3.StringUtils;
    
    import java.io.BufferedReader;
    import java.io.DataOutputStream;
    import java.io.InputStreamReader;
    import java.io.UnsupportedEncodingException;
    
    
    public class AddressUtils {
        
    
    	/**
    	 * unicode 转换成 中文
    	 * @param theString
    	 * @return
    	 */
    	public static String decodeUnicode(String theString) {
        
    		char aChar;
    		int len = theString.length();
    		StringBuffer outBuffer = new StringBuffer(len);
    		for (int x = 0; x < len;) {
        
    			aChar = theString.charAt(x++);
    			if (aChar == '\\') {
        
    				aChar = theString.charAt(x++);
    				if (aChar == 'u') {
        
    					int value = 0;
    					for (int i = 0; i < 4; i++) {
        
    						aChar = theString.charAt(x++);
    						switch (aChar) {
        
    						case '0':
    						case '1':
    						case '2':
    						case '3':
    						case '4':
    						case '5':
    						case '6':
    						case '7':
    						case '8':
    						case '9':
    							value = (value << 4) + aChar - '0';
    							break;
    						case 'a':
    						case 'b':
    						case 'c':
    						case 'd':
    						case 'e':
    						case 'f':
    							value = (value << 4) + 10 + aChar - 'a';
    							break;
    						case 'A':
    						case 'B':
    						case 'C':
    						case 'D':
    						case 'E':
    						case 'F':
    							value = (value << 4) + 10 + aChar - 'A';
    							break;
    						default:
    							throw new IllegalArgumentException("Malformed      encoding.");
    						}
    					}
    					outBuffer.append((char) value);
    				} else {
        
    					if (aChar == 't') {
        
    						aChar = '\t';
    					} else if (aChar == 'r') {
        
    						aChar = '\r';
    					} else if (aChar == 'n') {
        
    						aChar = '\n';
    					} else if (aChar == 'f') {
        
    						aChar = '\f';
    					}
    					outBuffer.append(aChar);
    				}
    			} else {
        
    				outBuffer.append(aChar);
    			}
    		}
    		return outBuffer.toString();
    	}
       
    }