中文图形验证码 动态图形验证码 图片验证码 验证码【加逻辑思路解析】

效果：

web:

 

后端测试：

 

逻辑：生成数字随机数，再改为中文表示，返给前端。人为输入阿拉伯数字。（后端缓存中存入用户信息和随机数。做校验。）

主要测试code：

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Random rm = new Random();      String strcode = Integer.toString(rm.nextInt(900000) + 100000);      System.out.println("生成的随机数是: "+strcode);      String[] code_ch_arr = {"一", "二", "三", "四", "五", "六", "七", "八", "九", "零"};      String code_ch = "";      for (int x = 0; x < strcode.length(); x++) {          switch (String.valueOf(strcode.charAt(x))) {              case "1":                  code_ch += code_ch_arr[0];                  break;              case "2":                  code_ch += code_ch_arr[1];                  break;              case "3":                  code_ch += code_ch_arr[2];                  break;              case "4":                  code_ch += code_ch_arr[3];                  break;              case "5":                  code_ch += code_ch_arr[4];                  break;              case "6":                  code_ch += code_ch_arr[5];                  break;              case "7":                  code_ch += code_ch_arr[6];                  break;              case "8":                  code_ch += code_ch_arr[7];                  break;              case "9":                  code_ch += code_ch_arr[8];                  break;              case "0":                  code_ch += code_ch_arr[9];                  break;              default:                  break;          }      }      System.out.println("中文表示的随机数是： " + code_ch);