获取httpservletrequest所有参数的名称和值

1、方法

    private Map showParams(HttpServletRequest request) {
        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) {
                    map.put(paramName, paramValue);
                }
            }
        }
        return map;
    }

2、调用

    Set<Map.Entry<String, String>> set=showParams(request).entrySet();
    for (Map.Entry entry : set) {
        if(!entry.getKey().toString().equals("submit")){
            System.out.println( entry.getKey().toString()+"+"+entry.getValue().toString());
        }
    }