| 27 | |
| 28 | |
| 29 | public class Util { |
| 30 | static Set<String> domains_ = new HashSet<String>(); |
| 31 | |
| 32 | static { |
| 33 | domains_.add("com"); |
| 34 | domains_.add("edu"); |
| 35 | domains_.add("gov"); |
| 36 | domains_.add("net"); |
| 37 | domains_.add("org"); |
| 38 | domains_.add("cn"); |
| 39 | domains_.add("hk"); |
| 40 | |
| 41 | } |
| 42 | |
| 43 | public static final int BUFFER = 1024; |
| 44 | |
| 45 | |
| 46 | /* |
| 47 | * 字符串中是否包含特殊字符 |
| 48 | String str = decoderStr("hDGkN4QxpDeBMOk3", false); |
| 49 | true: System.out.println(Util.IsUnReadable(str)); |
| 50 | false: System.out.println(Util.IsUnReadable("weoirus..&*^&*230 ??")); |
| 51 | false: System.out.println(Util.IsUnReadable("蠙~搦%")); |
| 52 | false: System.out.println(Util.IsUnReadable("a?LＲ--蔔sdfe")); |
| 53 | false: System.out.println(Util.IsUnReadable("as嘦fa3謪 er")); |
| 54 | false: System.out.println(Util.IsUnReadable("eddds")); |
| 55 | false: System.out.println(Util.IsUnReadable("遍历分词数据")); |
| 56 | * */ |
| 57 | public static boolean IsUnReadable(String str) { |
| 58 | //System.out.println("len: "+str.length()+", enc: "+enc+", len: "+buf.length); |
| 59 | String str2 = new String(str.replace('?', ' ')); |
| 60 | try { |
| 61 | byte[] buf = str2.getBytes("gbk"); |
| 62 | for (byte b : buf) |
| 63 | if (b == 0x3f /* '?' */) |
| 64 | return true; |
| 65 | } catch (/*UnsupportedEncodingException*/Exception e) { |
| 66 | return true; |
| 67 | } |
| 68 | return false; |
| 69 | } |
| 70 | |
| 71 | |
| 72 | /* * |
| 73 | test_str(" 324abc123abc75 "); |
| 74 | test_str(" 876"); |
| 75 | test_str("111"); |
| 76 | * */ |
| 77 | public static boolean IsDigit(String str) { |
| 78 | for (int i = str.length(); --i >= 0; ) { |
| 79 | if (!Character.isDigit(str.charAt(i))) { |
| 80 | return false; |
| 81 | } |
| 82 | } |
| 83 | return true; |
| 84 | } |
| 85 | |
| 86 | public static boolean IsHexadecimal(String str) { |
nothing calls this directly
no outgoing calls
no test coverage detected