Java之utf8中文编码转换

Posted 2020-10-22 星瑞的随笔

 

 1 import org.apache.commons.codec.binary.Hex;
 2 import org.junit.Test;
 3 
 4 /**
 5  * HBASE中文转换
 6  */
 7 public class CHCode {
 8 
 9     /**
10      * 中文转utf8
11      */
12     @Test
13     public void testStr2UTF8() throws Exception {
14         String str = "烦";
15         char[] chars = Hex.encodeHex(str.getBytes("UTF-8"));
16         System.out.println(chars);
17     }
18 
19     /**
20      * utf8转中文
21      */
22     @Test
23     public void testUTF8ToStr() throws Exception {
24 //        String str = new String(Hex.decodeHex("e783a6e783a6e783a6".toCharArray()), "UTF-8");
25 
26         byte[] bytes = Hex.decodeHex("e783a6e783a6e783a6".toCharArray());
27         String str = new String(bytes, "UTF-8");
28 
29         System.out.println("bytes:" + bytes);
30         System.out.println("String:" + str);
31     }
32 
33     /**
34      * HBASE中文转换
35      */
36     @Test
37     public void testHbaseStr() throws Exception {
38 //        Hbase UTF8编码
39         String content = "\\xE7\\x83\\xA6";
40         char[] chars = content.toCharArray();
41         StringBuffer sb = new StringBuffer();
42         for (int i = 2; i < chars.length; i = i + 4) {
43 //            System.out.println(chars[i]);
44             sb.append(chars[i]);
45 //            System.out.println(chars[i + 1]);
46             sb.append(chars[i + 1]);
47         }
48         System.out.println(sb);
49         String ouputStr = new String(Hex.decodeHex(sb.toString().toCharArray()), "UTF-8");
50         System.out.println(ouputStr);
51     }
52 
53 
54 }