如何发送Json到Struts2? [英] How to send Json to Struts2?

问题描述

有一个Json对象，我不知道如何在struts2中获取它，其中有两个数组，如何在Java中将其传输到ArrayList?

There is a Json object and I don't know how to get it in struts2,there are two arrays in it,how to transfer it to ArrayList in java?

var params = {
        'goodsIdList':goodsIdList,
        'goodsCountList':goodsCountList
    }
    console.log(params);
    $.ajax({
        type: 'post',
        url: "checkGoodsIsEnough",
        data: params,
        dataType:"json",
        async: true,
        success: alert("success"),
        error: function (jqXHR) {
            alert(jqXHR.status);
        }

    })

推荐答案

我将假定您已经将此配置添加到struts.xml中以提供JSON格式支持:

I will suppose that you have already added this config to your struts.xml to provide JSON format support :

<action name="checkGoodsIsEnough" class="ClassOf_CheckGoodsIsEnough">
        <interceptor-ref name="defaultStack"/>
         <interceptor-ref name="json">
            <param name="enableSMD">true</param>
        </interceptor-ref>
</action>

在这种情况下，请不要忘记通过使用以下命令将您的JavaScript对象转换为JSON字符串格式:

If this is the case, dont forget to convert your javascript object to JSON string format by using :

var JsonParams = JSON.stringify(params);

然后尝试执行Post调用，如下所示:

And then try to do the Post call as follow :

$.ajax({
    type: 'post',
    url: "checkGoodsIsEnough",
    data: JsonParams,
    dataType:"json",
    async: true,
    success: alert("success"),
    error: function (jqXHR) {
        alert(jqXHR.status);
    }

});

希望获得帮助！

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