tools.java

来自「野生动物系统的JAVA源码, 野生动物系统的JAVA源码」· Java 代码 · 共 67 行

package scout.util;

/**
 * <p>Title:the conversion between ISO and GB2312 </p>
 * <p>Description:ISO convert Gb2312 OR Gb2312 convert ISO</p>
 * <p>Copyright: Copyright (c) 2003</p>
 * <p>Company: Chongqing Kemeida corporation</p>
 * @author zengBo
 * @version 1.0
 */
import javax.servlet.*;
import javax.servlet.http.*;

public class Tools {

    /**
     * ISO convert Gb2312,convert chinese
     * @param str
     * @return chinese
     */
    public static String iSOtoGb2312(String str) {
        try {
            byte[] bytesStr = str.getBytes("ISO-8859-1");
            return new String(bytesStr, "gb2312");
        } catch (Exception ex) {
            System.out.println(ex.getMessage());
            return str;
        }
    }

    /**
     * Gb2312 convert ISO:convert standard language
     * @param str
     * @return standard language
     */
    public static String gb2312ToIso(String str) {
        try {
            byte[] bytesStr = str.getBytes("gb2312");
            return new String(bytesStr, "ISO-8859-1");
        } catch (Exception ex) {
            System.out.println(ex.getMessage());
            return str;
        }
    }

    public static String formatStr(HttpServletRequest request, String str) {
        return Tools.value(request, (str == null) ? "" : str);
    }

    public static String formatStr(String str) {
        return (str == null) ? "" : str;
    }

    public static String formatStr(String str1, String str2) {
        return (str1 == null||str1.equals("")||str1=="null") ? str2 : str1;
    }

    /**
     * get value from the front page
     * @param paraName
     * @return the paraName's value
     */
    public static String value(HttpServletRequest request, String paraName) {
        return Tools.iSOtoGb2312(Tools.formatStr(request.getParameter(paraName)));
    }
}