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通過程序遍歷http請求的所有參數放到hashmap中，用的時候方便了。
如果參數值有中文，那么需要在程序中添加filter轉碼，或者在下面程序里，對paramValue轉碼
- public void doGet(HttpServletRequest request, HttpServletResponse response)
- throws ServletException, IOException {
- Map map = new HashMap();
- Enumeration paramNames = request.getParameterNames();
- while (paramNames.hasMoreElements()) {
- String paramName = (String) paramNames.nextElement();
-
- String[] paramValues = request.getParameterValues(paramName);
- if (paramValues.length == 1) {
- String paramValue = paramValues[0];
- if (paramValue.length() != 0) {
- System.out.println("參數：" + paramName + "=" + paramValue);
- map.put(paramName, paramValue);
- }
- }
- }
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