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我是一个 java 脚本新手，这就是为什么我为一个简单的 json 数组的映射而苦苦挣扎，如果它是来自服务器的响应。我已经用静态 json 对其进行了测试，它按预期工作：

    new gridjs.Grid({
        columns: [{
             id: 'dateTime',
             name: 'Timestamp'
          }, {
             id: 'host',
             name: 'Host'
          }, {
             id: 'ipv4',
             name: 'IPv4'
          }, {
             id: 'ipv6',
             name: 'IPv6'
          }],
          data: [
              {"dateTime": "2021-12-02 03:11:30.501","host": "master.myhost.com","ipv4": "93.215.66.14", "ipv6": "2003:cc:2fff:9e4:2e91:abff:febf:d839"}, 
              {"dateTime": "2021-12-02 03:44:29.494", "host": "test.myhost.com", "ipv4": "93.203.250.190", "ipv6": "n/a"}, 
          ]
        }).render(document.getElementById("wrapper"));

但是如果同一个 json 数组是由服务器传递的，我不知道如何定义我的数据映射。这就是我尝试过的：

    new gridjs.Grid({
        columns: [{
             id: 'dateTime',
             name: 'Timestamp'
          }, {
             id: 'host',
             name: 'Host'
          }, {
             id: 'ipv4',
             name: 'IPv4'
          }, {
             id: 'ipv6',
             name: 'IPv6'
          }],
          server: {
              url: "http://localhost:8080/info/zone-log",
              then: data => data.map([data.dateTime, data.host, data.ipv4, data.ipv6]) 
          }
        }).render(document.getElementById("wrapper"));

我在 JS 控制台上收到以下错误：'[Grid.js] [ERROR]: TypeError: [...] is not a function'。

有人可以解释一下，如何正确地进行数据映射？

编辑

服务器响应：

curl -i http://localhost:8080/info/zone-log
HTTP/1.1 200 OK
Date: Tue, 01 Mar 2022 08:53:39 GMT
Content-Type: application/json
Transfer-Encoding: chunked

[{"dateTime":"2021-12-02 03:11:30.501","host":"master.myhost.com","ipv4":"93.215.66.14","ipv6":"2003:cc:2fff:9e4:2e91:abff:febf:d839"},{"dateTime":"2021-12-02 03:44:29.494","host":"ursa.myhost.com","ipv4":"93.203.250.190","ipv6":"n/a"}, ...}

java脚本控制台日志：

data 
Array(191) [ {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, … ]
[0…99]
​​0: Object { dateTime: "2021-12-02 03:11:30.501", host: "master.myhost.com", ipv4: "93.215.66.14", … }
​​1: Object { dateTime: "2021-12-02 03:44:29.494", host: "ursa.myhost.com", ipv4: "93.203.250.190", … }

[Grid.js] [ERROR]: TypeError: [...] is not a function   log.ts:12:21
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1 回答 1

1

看起来您获得的数据不是数组。因此 data.map() 给出类型错误。你能否请控制台记录数据，看看会发生什么？

new gridjs.Grid({
    columns: [{
         id: 'dateTime',
         name: 'Timestamp'
      }, {
         id: 'host',
         name: 'Host'
      }, {
         id: 'ipv4',
         name: 'IPv4'
      }, {
         id: 'ipv6',
         name: 'IPv6'
      }],
      server: {
          url: "http://localhost:8080/info/zone-log",
          then: data => {
                  console.log("data", data);
                  return data.map([data.dateTime, data.host, data.ipv4, data.ipv6]) 
                }
      }
    }).render(document.getElementById("wrapper"));

最有可能所需的数组位于数据中的另一个对象内。

于 2022-03-01T03:08:48.257 回答