Java在Linux下获取当前程序路径&解决中文编码问题

在Linux下，可以通过获取当前的类所在路径的方法获取当前路径，但如果路径中存在中文或者空格，则中文部分会显示成%xx，这是要对路径进行编码转换，具体代码如下：

/*通过获取当前Class所在位置来获取当前路径,如果该用户的文件夹不存在，则删除*/ public String FindCurrentParentPath(){ String Result=""; CODER Coder = new CODER(); String Path = this.getClass().getResource("Main.class").getPath().replaceAll("%20", " "); String[] aa = Path.split("/"); int k = 3; // System.out.println("aa="+aa[(aa.length-3)]); if(aa[(aa.length-4)].equals("build")){ k = 4; } for(int i = 1;i<(aa.length-k);i++){ if(Coder.isUtf8Url(aa[i])){ String path1 = Coder.Utf8URLdecode(aa[i]); // System.out.println(Coder.Utf8URLdecode(aa[i])); Result = Result+"/"+path1; }else{ String path2 = URLDecoder.decode(aa[i]); // System.out.println(URLDecoder.decode(aa[i])); Result = Result+"/"+path2; } } if(System.getProperty("os.name").contains("Windows")){ Result = Result.replaceFirst("/", ""); } return Result; }

CODER类定义如下：

/*编码转换（把%..恢复成中文）*/ class CODER { /** * 转换编码 ISO-8859-1到GB2312 * @param text * @return */ public String ISO2GB(String text) { String result = ""; try { result = new String(text.getBytes("ISO-8859-1"), "GB2312"); } catch (UnsupportedEncodingException ex) { result = ex.toString(); } return result; } /** * 转换编码 GB2312到ISO-8859-1 * @param text * @return */ public String GB2ISO(String text) { String result = ""; try { result = new String(text.getBytes("GB2312"), "ISO-8859-1"); } catch (UnsupportedEncodingException ex) { ex.printStackTrace(); } return result; } /** * Utf8URL编码 * @param s * @return */ public String Utf8URLencode(String text) { StringBuffer result = new StringBuffer(); for (int i = 0; i < text.length(); i++) { char c = text.charAt(i); if (c >= 0 && c <= 255) { result.append(c); }else { byte[] b = new byte[0]; try { b = Character.toString(c).getBytes("UTF-8"); }catch (Exception ex) { } for (int j = 0; j < b.length; j++) { int k = b[j]; if (k < 0) k += 256; result.append("%" + Integer.toHexString(k).toUpperCase()); } } } return result.toString(); } /** * Utf8URL解码 * @param text * @return */ public String Utf8URLdecode(String text) { String result = ""; int p = 0; if (text!=null && text.length()>0){ text = text.toLowerCase(); p = text.indexOf("%e"); if (p == -1) return text; while (p != -1) { result += text.substring(0, p); text = text.substring(p, text.length()); if (text == "" || text.length() < 9) return result; result += CodeToWord(text.substring(0, 9)); text = text.substring(9, text.length()); p = text.indexOf("%e"); } } return result + text; } /** * utf8URL编码转字符 * @param text * @return */ private String CodeToWord(String text) { String result; if (Utf8codeCheck(text)) { byte[] code = new byte[3]; code[0] = (byte) (Integer.parseInt(text.substring(1, 3), 16) - 256); code[1] = (byte) (Integer.parseInt(text.substring(4, 6), 16) - 256); code[2] = (byte) (Integer.parseInt(text.substring(7, 9), 16) - 256); try { result = new String(code, "UTF-8"); }catch (UnsupportedEncodingException ex) { result = null; } } else { result = text; } return result; } /** * 编码是否有效 * @param text * @return */ private boolean Utf8codeCheck(String text){ String sign = ""; if (text.startsWith("%e")) for (int i = 0, p = 0; p != -1; i++) { p = text.indexOf("%", p); if (p != -1) p++; sign += p; } return sign.equals("147-1"); } /** * 是否Utf8Url编码 * @param text * @return */ public boolean isUtf8Url(String text) { text = text.toLowerCase(); int p = text.indexOf("%"); if (p != -1 && text.length() - p > 9) { text = text.substring(p, p + 9); } return Utf8codeCheck(text); } }