【总结】Json的转换与通报

  • 提要
    项目中经常使用的json情势数据在前背景完成string与object对象等种种互转相干知识点整顿。
  • 前端:Form Data–>Json Object–>Json String:

    jsp片断:

    <form action=”” id=”jsonForm”>

    cd:<input type="text" id="" name="goodsCd" value="20150904" /><br/>
    name:<input type="text" id="" name="goodsName" value="che"/>

    </form>

    js片断:

    //具有name、value属性,序列化成一个Object对象
    $.fn.serializeObject = function() {

    var obj = {};
    var arr = this.serializeArray();
    $.each(arr, function() {
        if (obj[this.name]) {
            if (!obj[this.name].push) {
                obj[this.name] = [ obj[this.name] ];
            }
            obj[this.name].push(this.value || '');
        } else {
            obj[this.name] = this.value || '';
        }
    });
    return obj;

    };

    var jsonForm = $(“#jsonForm”);
    // json对象转json字符串
    var jsonStr = JSON.stringify(jsonForm.serializeObject());
    alert(jsonStr);

  • 前端:Json String–>Json Object

    js片断:

    jQuery.parseJSON(jsonStr));

  • 前后端:Json Object–>JavaBean:

    js片断:

    // rb须与背景实体变量称号同名
    function getRbJson(){

     var rbJson = {};
     
     rbJson["rb.goodsType"] = "a";
     rbJson["rb.goodsCd"] = "b";
     
     return rbJson;

    }
    $(function(){

        $.ajax({
            url: "setJsonObject.action",
            type: 'POST',
            cache: false,
            async:false,
            data: getRbJson(),
            success: function (text) {
            },
            error: function (jqXHR, textStatus, errorThrown) {
               alert(jqXHR.responseText);
            }
        });

    });

    java片断:

    private RbGoods rb;

    public RbGoods getRb() {

    return rb;

    }

    public void setRb(RbGoods rb) {

    this.rb = rb;

    }

    public String setJsonObject() {

    System.out.println(rb.getGoodsCd());
    return SUCCESS;

    }

  • 前后端:Json String–>JavaBean:

    js片断:

    var rbStr = {};
    var rbArray = [];
    rbArray.push({goodsCd:’1′,goodsName:’che’});
    rbArray.push({goodsCd:’2′,goodsName:’chen’});
    rbStr[“jsonArrayStr”] = rbArray;
    $.ajax({

        url: "jsonStrToObject.action",
       type: 'POST',
      cache: false,
        async:false,
        data: {jsonStr:JSON.stringify(rbArray)},
     success: function (text) {},
    error: function (jqXHR, textStatus, errorThrown) {
            alert(jqXHR.responseText);
        }

    });

    java片断:

private String jsonStr;

public String getJsonStr() {
    return jsonStr;
}

public void setJsonStr(String jsonStr) {
    this.jsonStr = jsonStr;
}

public String jsonStrToObject() {
    // String转JSON
    JSONArray jsonArray = JSONArray.fromObject(jsonStr);
    
    for(int i = 0; i < jsonArray.size(); i++) {
        // JSON转object对象
        String JOStr = jsonArray.getString(i);
        JSONObject JO = JSONObject.fromObject(JOStr);
        RbGoods goods =(RbGoods)JSONObject.toBean(JO, RbGoods.class);
        System.out.println(goods.getGoodsCd());
    }
    
    return SUCCESS;
}

function newchePoint(obj) {
    return "<che id=\""+obj.id+
    "\" type=\""+obj.type+"\" value=\"\"/>\r\n";
}

  • 更新ing…
    原文作者:花田土著
    原文地址: https://segmentfault.com/a/1190000004951152
    本文转自网络文章,转载此文章仅为分享知识,如有侵权,请联系博主进行删除。
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