REST 查询字符串参数

Question

我从客户端发送了以下查询字符串参数

{"take":75,"skip":0,"page":1,"pageSize":75,"filter":{"logic":"and","filters":
[{"field":"prodCode","operator":"eq","value":"Z20"}]}}:

在REST服务器中，我如何接收上述格式并正确分配给每个类别？

更新1

MultivaluedMap params = uriInfo.getQueryParameters();

参数的值为

｛_=[1437904506062]，｛“take”：75，“skip”：0，“page”：1，“pageSize”：75、“filter”：｛“logic”：“and”，“filters”：〔｛“field”：“prodCode”，“operator”：“eq”，“value”：“Z30”｝〕｝＝〔〕｝

Answer 1

这是一个查询参数，因此您必须使用< code>key来获取它，该键的值为< code>{"take":75，" skip":0，" page":1，" pageSize":75，" filter":{"logic":"and "，" filters": [{"field":"prodCode "，" operator":"eq "，" value ":" Z20 " } }:。因此，使用< code >键，将上述内容存储在< code >字符串中，然后解析为< code>JSON(这里我使用的是< code>org.json)。您可以根据需要提取任何< code >键/值。您可以使用代码片段:-

String inputValue = @QueryParam(YOUR_KEY); // OR whatever way you get it
        /*
         * This inputValue will actually contain your value :-
         * {"take":75,"skip":0,"page":1,
         * "pageSize":75,"filter":{"logic":"and","filters":
         * [{"field":"prodCode","operator":"eq","value":"Z20"}]}}
         */

        JSONObject inputJSON = new JSONObject(inputValue); 
        //Now getting values from input JSON
        int take = inputJSON.getInt("take");
        int skip = inputJSON.getInt("skip");
        int page = inputJSON.getInt("page");
        int pageSize = inputJSON.getInt("pageSize");
        JSONObject filter = inputJSON.getJSONObject("filter"); // filter is again a JSONObject 
        String logic = filter.getString("logic");
        System.out.println(take + " "+skip + " "+page + " "+pageSize + " "+logic);
        JSONArray filters = filter.getJSONArray("filters"); // filters is a JSONArray

        for(int i = 0; i< filters.length(); i++){  // iterating over JSONArray 
        JSONObject jo = (JSONObject)filters.get(i); 
        String field = jo.getString("field"); 
        String operator = jo.getString("operator"); 
        String value = jo.getString("value"); 
        System.out.println(field + " "+operator + " "+value ); 
}

输出：-

75 0 1 75 and
prodCode eq Z20