$.getJson() 响应限制答案

【问题标题】：$.getJson() response limit$.getJson() 响应限制
【发布时间】：2013-09-25 01:21:14
【问题描述】：

我正在使用 $.getJson() 函数返回位于单独 json 文件中的数组并将其存储到本地数组 var 中。我遇到的问题是，我只能从 json 中取回 25 个项目中的 20 个。 $.getJson 有返回物品数量的限制吗？

这就是我使用代码的方式：

Javascript：

$.getJSON('data/gridData1.json',function(json){
                console.log("Json length is: " + json.length);
                var grid = json;
                filterGrid(grid, ele);
            });

json：

[
 {"assignment":"Tom" , "cell":["Tom", "2013-10-06", "Client 3", "Activity", "Scheduled" ]}
,{"assignment":"Tom" , "cell":["Tom", "2007-10-06", "Client 2", "Alert" , "Work In Progress" ]}
,{"assignment":"Tom" , "cell":["Tom", "2013-10-06", "Client 3", "Activity", "In Progress" ]}
,{"assignment":"Tom" , "cell":["Tom", "2007-10-06", "Client 1", "Lead" , "Qualified" ]}
,{"assignment":"Tom" , "cell":["Tom", "2007-10-06", "Client 2", "Alert" , "Open" ]}
,{"assignment":"Jenny" , "cell":["Jenny" , "2007-10-06", "Client 1", "Notification" , "New" ]}
,{"assignment":"Jenny" , "cell":["Jenny" , "2007-10-06", "Client 3", "Lead" , "Qualified" ]}
,{"assignment":"Jenny" , "cell":["Jenny" , "2007-10-05", "Client 2", "Lead" , "Unqualified" ]}
,{"assignment":"Jenny" , "cell":["Jenny" , "2007-10-05", "Client 1", "Activity"  , "In Progress" ]}
,{"assignment":"Jenny" , "cell":["Jenny" , "2007-10-05", "Client 3", "Lead" , "Qualified" ]}
,{"assignment":"Jenny" , "cell":["Jenny" , "2007-10-04", "Client 3", "Lead" , "Unqualified" ]}
,{"assignment":"Katie" , "cell":["Katie", "2007-10-06", "Client 2", "Activity" , "Draft" ]}
,{"assignment":"Katie" , "cell":["Katie", "2007-10-06", "Client 1", "Activity" , "Draft" ]}
,{"assignment":"Katie" , "cell":["Katie", "2007-10-06", "Client 2", "Activity" , "In Progress" ]}
,{"assignment":"Brad" , "cell":["Brad" , "2007-10-06", "Client 1", "Activity" , "Scheduled" ]}
,{"assignment":"Brad" , "cell":["Brad" , "2007-10-06", "Client 3", "Activity" , "Scheduled" ]}
,{"assignment":"Brad" , "cell":["Brad" , "2007-10-05", "Client 2", "Activity" , "In Progress" ]}
,{"assignment":"Brad" , "cell":["Brad" , "2007-10-05", "Client 1", "Alert"  , "Work In Progress" ]}
,{"assignment":"Brad" , "cell":["Brad" , "2007-10-05", "Client 3", "Alert" , "Open" ]}
,{"assignment":"Brad" , "cell":["Brad" , "2007-10-04", "Client 3", "Notification" , "New" ]}
,{"assignment":"Hank" , "cell":["Hank", "2013-10-06", "Client 3", "Lead", "Unqualified" ]}
,{"assignment":"Hank" , "cell":["Hank", "2007-10-06", "Client 2", "Alert" , "Work In Progress" ]}
,{"assignment":"Hank" , "cell":["Hank", "2007-10-06", "Client 1", "Lead" , "Qualified" ]}
,{"assignment":"Hank" , "cell":["Hank", "2007-10-06", "Client 2", "Alert" , "Open" ]}
,{"assignment":"Mike" , "cell":["Mike" , "2007-10-04", "Client 3", "Notification" , "New" ]}
]

控制台日志显示结果：20。我缺少什么吗？

【问题讨论】：

.getjson() 只是.ajax() 的包装器，并假定来自服务器的 JSON 响应。它没有内置限制。如果你只收到 20 个元素，那么服务器只会发送 20 个元素。
是的，我刚刚再次运行它，现在它正在显示所有内容。我不知道为什么它一开始就不起作用，因为我没有做任何改变。

标签： javascript jquery

【解决方案1】：

JSON 响应的大小没有任何限制在 HTML 或 XML 响应上。你可以有非常大的 JSON 响应，没有问题。 GET 与 POST 与此无关。这些只是在请求发送到服务器的方式； GET 的响应格式和 POST 是相同的。

虽然在向服务器请求数据量大的情况下，首选Post，但服务器的响应在GET和POST中都没有限制

【讨论】：