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());

        }

    }