JSON HTML
内容摘要
JSON 非常易于转译为 JavaScript。
JavaScript 可用于在网页中生成 HTML。
文章正文
JSON 非常易于转译为 JavaScript。
JavaScript 可用于在网页中生成 HTML。
HTML 表格
使用作为 JSON 接收到的数据来生成表格:
实例
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 | obj = { "table" : "customers" , "limit" :20 }; dbParam = JSON.stringify(obj); xmlhttp = new XMLHttpRequest(); xmlhttp.onreadystatechange = function () { if ( this .readyState == 4 && this .status == 200) { myObj = JSON.parse( this .responseText); txt += "<table border='1'>" for (x in myObj) { txt += "<tr><td>" + myObj[x].name + "</td></tr>" ; } txt += "</table>" document.getElementById( "demo" ).innerHTML = txt; } } xmlhttp.open( "POST" , "json_demo_db_post.php" , true ); xmlhttp.setRequestHeader( "Content-type" , "application/x-www-form-urlencoded" ); xmlhttp.send( "x=" + dbParam); |
动态 HTML 表格
使 HTML 表格基于下拉列表的值:选择一个选项: Customers Products Suppliers
实例
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 | <select id= "myselect" onchange= "change_myselect(this.value)" > <option value= "" >Choose an option:</option> <option value= "customers" >Customers</option> <option value= "products" >Products</option> <option value= "suppliers" >Suppliers</option> </select> <script> function change_myselect(sel) { var obj, dbParam, xmlhttp, myObj, x, txt = "" ; obj = { "table" :sel, "limit" :20 }; dbParam = JSON.stringify(obj); xmlhttp = new XMLHttpRequest(); xmlhttp.onreadystatechange = function () { if ( this .readyState == 4 && this .status == 200) { myObj = JSON.parse( this .responseText); txt += "<table border='1'>" for (x in myObj) { txt += "<tr><td>" + myObj[x].name + "</td></tr>" ; } txt += "</table>" document.getElementById( "demo" ).innerHTML = txt; } }; xmlhttp.open( "POST" , "json_demo_db_post.php" , true ); xmlhttp.setRequestHeader( "Content-type" , "application/x-www-form-urlencoded" ); xmlhttp.send( "x=" + dbParam); } </script> |
HTML 下拉列表
用接收到的 JSON 数据来生成 HTML 下拉列表:
实例
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 | obj = { "table" : "customers" , "limit" :20 }; dbParam = JSON.stringify(obj); xmlhttp = new XMLHttpRequest(); xmlhttp.onreadystatechange = function () { if ( this .readyState == 4 && this .status == 200) { myObj = JSON.parse( this .responseText); txt += "<select>" for (x in myObj) { txt += "<option>" + myObj[x].name; } txt += "</select>" document.getElementById( "demo" ).innerHTML = txt; } } xmlhttp.open( "POST" , "json_demo_db_post.php" , true ); xmlhttp.setRequestHeader( "Content-type" , "application/x-www-form-urlencoded" ); xmlhttp.send( "x=" + dbParam); |
代码注释