1    2 import java.io.UnsupportedEncodingException;  3   4 import javax.servlet.http.HttpServletRequest;  5   6   7 public class ParamUtil {  8        9      10     public static String getGBKStr(HttpServletRequest request, String s) { 11         String str = ""; 12         try { 13              String temp = request.getParameter(s); 14              if (temp == null) 15                  return str; 16              else 17                  str = ISO2GBK(temp.trim()); 18         } catch (Exception e){} 19         return str; 20     } 21      22     public static String getString(HttpServletRequest request, String s) { 23         String str = ""; 24         try { 25             String temp = request.getParameter(s).trim();             26             if (temp == null) 27                 return str; 28             else 29                 str = temp; 30         } catch (Exception e){} 31         return str; 32     } 33  34      35      36     public static String getStringGBK(HttpServletRequest request, String s) { 37         String str = ""; 38         try { 39              String temp = ISO2GBK(request.getParameter(s).trim()); 40              if (temp == null) 41                  return str; 42              else 43                  str = temp; 44         } catch (Exception e){} 45         return str; 46     } 47  48  49      50     public static String getString2(HttpServletRequest request, String s) { 51         String str = " "; 52         try { 53              String temp = request.getParameter(s); 54              if (temp == null) 55                  return str; 56              else 57                  str = temp; 58         } catch (Exception e){} 59         return str; 60     } 61      62     public static int getInt(HttpServletRequest request,String s) { 63         int i = 0; 64         try { 65              String temp = getString(request,s); 66              if (temp.equals("")) 67                  return i; 68              else 69                  i = Integer.parseInt(temp); 70         } catch (NumberFormatException e) {} 71         return i; 72     } 73      74     public static long getLong(HttpServletRequest request,String s) { 75         long l = 0; 76         try { 77              String temp = getString(request,s); 78              if (temp.equals("")) 79                  return l; 80              else 81                  l = Long.parseLong(temp); 82         } catch (NumberFormatException e) {} 83         return l; 84     } 85  86     public static float getFloat(HttpServletRequest request,String s) { 87         float f = 0.0f; 88         try { 89              String temp = getString(request,s); 90              if (temp.equals("")) 91                  return f; 92              else 93                  f = Float.parseFloat(temp); 94         } catch (NumberFormatException e) {} 95         return f; 96     } 97      98     public static double getDouble(HttpServletRequest request,String s) { 99         double d = 0;100         try {101              String temp = getString(request,s);102              if (temp.equals(""))103                  return d;104              else105                  d = Double.parseDouble(temp);106         } catch (NumberFormatException e) {}107         return d;108     }109     public static String[] getValues(HttpServletRequest request,String s) {110         return request.getParameterValues(s);111     }112     113     public static String ISO2GBK(String s) {114         if (s == null){115             s = "";116         } else {117             try {118                 s = new String(s.getBytes("ISO-8859-1"),"GBK");119             } catch(UnsupportedEncodingException e) {120                 System.out.println("转码成功");121             }122         }123         return s;124     }125     126 }