本篇文章给大家带来的内容是关于JavaScript实现模板生成大量数据的方法(附代码),有一定的参考价值,有需要的朋友可以参考一下,希望对你有所帮助。
有时需要根据模板生成大量数据,这个代码工具简直就是神器。
基本思路就是:
解析模板数据,将替换的内容解析出来
解析输入数据,使用\t,\n将原始数据进行切分
进行数据替换,然后输出。
此处用jquery实现元素的选择,使用vue.js实现逻辑与展示的分离。
示例结果如下:
代码如下:
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>模板生成器</title> <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1"> <script src="https://cdn.bootcss.com/jquery/3.3.1/jquery.min.js"></script> <script src="https://cdn.bootcss.com/vue/2.5.22/vue.min.js"></script> <!-- 最新版本的 Bootstrap 核心 CSS 文件 --> <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@3.3.7/dist/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous"> <!-- 最新的 Bootstrap 核心 JavaScript 文件 --> <script src="https://cdn.jsdelivr.net/npm/bootstrap@3.3.7/dist/js/bootstrap.min.js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous"></script> <script> $(document).ready(function () { function combineTemplateAndInput(template, input) { if (!template || !input) { return ""; } var inputLines = input.split('\n'); var inputCount = 0; // 统计数据的数量个数 for (var i = 0; i < inputLines.length; i++) { var line = inputLines[i]; if (line) { inputCount++; } } // 替换数据 var resLines = []; var inputIndex = 1; for (var i = 0; i < inputLines.length; i++) { var line = inputLines[i]; // 忽略了空行 if (!line) { resLines.push(""); continue; } // 将数据按\t分隔生成$1=xx,$2=xx,$3=xx var dColumns = line.split('\t'); var mColumnData = {}; for (var j = 0; j < dColumns.length; j++) { mColumnData['$' + (1 + j)] = dColumns[j]; } var resLine = template; // 先进行$?,$#这些替换,避免数据中的相同格式干扰 // 替换$?,下标 resLine = resLine.replace(/(\$\?)/g, inputIndex); // 替换$#,数据数量 resLine = resLine.replace(/(\$#)/g, inputCount); // 替换$0,整行数据 resLine = resLine.replace(/(\$0)/g, line); // 找出模板中的`$数字`格式的内容,并进行替换 resLine = resLine.replace(/(\$\d+)/g, function (match, p1) { if (mColumnData[p1]) { return mColumnData[p1]; } return ""; }); // 找出模板中`${数字}`格式的内容,进行替换 resLine = resLine.replace(/(\$\{\d+\})/g, function (match, p1) { if (mColumnData[p1]) { return mColumnData[p1]; } return ""; }); inputIndex++; resLines.push(resLine); } return resLines.join(""); } var vm = new Vue({ el: "#container", data: { inputTemplate: [ "mkdir -p $4", "touch $4$2.proto", "\n" ].join("\n"), inputContent: [ "/abc/getNearbyOrgs/1.0 GetNearbyOrgs GetNearbyOrgs.proto abc/ getNearbyOrgs /abc/getNearbyOrgs/1.0", "/abc/getOrgByArea/1.0 GetOrgByArea GetOrgByArea.proto abc/ getOrgByArea /abc/getOrgByArea/1.0", "/abc/addFeedback/1.0 AddFeedback AddFeedback.proto abc/ addFeedback /abc/addFeedback/1.0", "/abc/getOrgCities/1.0 GetOrgCities GetOrgCities.proto abc/ getOrgCities /abc/getOrgCities/1.0", "/abc/getServiceInfo/1.0 GetServiceInfo GetServiceInfo.proto abc/ getServiceInfo /abc/getServiceInfo/1.0", "/hello/sayNearbyOrgs/1.0 sayNearbyOrgs sayNearbyOrgs.proto hello/ sayNearbyOrgs /hello/sayNearbyOrgs/1.0", "/hello/sayOrgByArea/1.0 sayOrgByArea sayOrgByArea.proto hello/ sayOrgByArea /hello/sayOrgByArea/1.0", "/hello/sayOrgCities/1.0 sayOrgCities sayOrgCities.proto hello/ sayOrgCities /hello/sayOrgCities/1.0", "/hello/sayServiceInfo/1.0 sayServiceInfo sayServiceInfo.proto hello/ sayServiceInfo /hello/sayServiceInfo/1.0" ].join("\n"), outputContent: "", msg:{ title:"帮助", content:[ "$?: 数据的顺序,从1开始,不含空行", "$#: 数据的数量,不含空行", "$0: 原始数据,整行数据", "$数字: $1,$2,...,表示第1,2,...列数据", "${数字}: ${11},${12},...,表示第11,12,...列数据,用于去除$11与$1的混淆(暂未实现)" ].join("<br/>") } }, methods: { aiGen: function () { var self = this; self.outputContent = combineTemplateAndInput(self.inputTemplate, self.inputContent); }, clearInputContent:function () { var self = this; self.inputContent = ""; }, clearInputTemplate:function () { var self = this; self.inputTemplate = ""; }, clearOutputContent:function () { var self = this; self.outputContent = ""; } } }); }); </script> </head> <body> <div id="container" class="container "> <div> <div class="col-lg-12 col-sm-12 col-md-12 col-xs-12"> <h3>模板生成器</h3> </div> <div class="col-lg-12 col-sm-12 col-md-12 col-xs-12 bs-callout bs-callout-warning"> <div class="alert alert-warning" v-html="msg.content"></div> </div> <div class="col-lg-12 col-sm-12 col-md-12 col-xs-12"> <div> <div class="col-lg-6 col-md-6 col-sm-6 col-xs-12" id="inputTemplate"> <div> <label class="col-sm-4 col-xs-4">模板</label> </div> <div> <textarea type="text" rows="10" name="inputTemplate" id="inputTemplateText" v-model="inputTemplate" placeholder="请输入模板" ></textarea> </div> </div> <div class="col-lg-6 col-md-6 col-sm-6 col-xs-12" id="inputContent"> <div> <label class="col-sm-4 col-xs-4">输入</label> </div> <div> <textarea type="text" rows="10" name="inputTemplate" v-model="inputContent" placeholder="请输入数据" id="inputContentText" class="form-control col-md-12 text-to-copy-1"></textarea> </div> </div> </div> </div> <div class="col-lg-12 col-sm-12 col-md-12 col-xs-12 text-right" id="opButtons"> <button class="btn btn-primary" @click="clearInputTemplate()">清空模板</button> <button class="btn btn-primary" @click="clearInputContent()">清空输入</button> <button class="btn btn-primary" @click="clearOutputContent()">清空输出</button> <button class="btn btn-success" @click="aiGen()">生成</button> </div> <div class="col-lg-12 col-sm-12 col-md-12 col-xs-12" id="outputContent"> <div> <label class="col-sm-2 col-xs-2">输出</label> </div> <div> <textarea type="text" rows="20" name="outputContent" id="outputTextContent" v-model="outputContent" placeholder="" readonly></textarea> </div> </div> </div> </div> </body> </html>
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