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Using jquery to save query records

May 18, 2023 pm 08:13 PM

With the development of information technology, many enterprises and individuals are inseparable from various information systems and need to persistently store data for subsequent query and analysis. In this process, how to efficiently save query records becomes very important. In this article, we will introduce how to use jQuery to save query records.

1. Requirements Analysis

When performing query operations, we need to save the following information:

1. Query conditions: such as query time, query keywords, etc.

2. Query results: It is best to save the code or data structure of the query results.

3. Query time: During each query, the query time needs to be recorded.

When saving records, we need to record the following information:

1. Record ID: Each record needs to have a unique ID.

2. Query conditions.

3. Query results.

4. Query time.

2. Use jQuery to save query records

1. Create a record table

We use HTML to create a record table, which contains record ID, query conditions, and query Fields such as results and query time. At the same time, we also need to use CSS to beautify the table.

&lt;!DOCTYPE html&gt;
&lt;html&gt;
&lt;head&gt;
&lt;title&gt;查询记录保存&lt;/title&gt;
&lt;style&gt;
table {
border-collapse: collapse;
margin: 30px 0;
}
table tr:nth-child(even) {
background-color: #f2f2f2;
}
table th {
background-color: #4CAF50;
color: white;
padding: 8px;
text-align: left;
}
table td, table th {
border: 1px solid #ddd;
padding: 8px;
}
&lt;/style&gt;
&lt;/head&gt;
&lt;body&gt;

&lt;h2&gt;查询记录保存&lt;/h2&gt;

&lt;table&gt;
&lt;thead&gt;
&lt;tr&gt;
&lt;th&gt;ID&lt;/th&gt;
&lt;th&gt;查询条件&lt;/th&gt;
&lt;th&gt;查询结果&lt;/th&gt;
&lt;th&gt;查询时间&lt;/th&gt;
&lt;/tr&gt;
&lt;/thead&gt;
&lt;tbody&gt;
&lt;!--数据记录--&gt;
&lt;/tbody&gt;
&lt;/table&gt;

&lt;/body&gt;
&lt;/html&gt;

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2. Implement query record saving

Using jQuery to save query records, we need to add the code to save the record in the event handling function of the query button. When saving records, we need to add records according to the table format we defined previously.

//查询按钮的事件处理函数
$('#searchButton').click(function() {
//获取查询条件
var keywords = $('#keywords').val();
var startDate = $('#startDate').datepicker(&quot;getDate&quot;);
var endDate = $('#endDate').datepicker(&quot;getDate&quot;);

//查询结果处理
var result = processData(keywords, startDate, endDate);

//将查询结果添加到页面上
var tbody = $('table tbody');
var row = $('&lt;tr&gt;&lt;/tr&gt;');
var id = $('&lt;td&gt;&lt;/td&gt;').text(tbody.children().length + 1);
var keywordsTd = $('&lt;td&gt;&lt;/td&gt;').text(keywords);
var resultTd = $('&lt;td&gt;&lt;/td&gt;').html(result);
var dateTd = $('&lt;td&gt;&lt;/td&gt;').text(new Date().toUTCString());

row.append(id)
.append(keywordsTd)
.append(resultTd)
.append(dateTd);

tbody.append(row);
});

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In the above code, we obtain the query conditions and results by using jQuery selector, and then save the record. In addition, we also use the datepicker component to handle the input of the time picker.

3. Add styles

In order to make the record table more beautiful, we also need to add some styles to the table. These styles mainly include the style of the selected row, the style when the mouse is hovering, etc.

tr.selected {
background-color: #F7DC6F;
}
tr:hover {
background-color: #EEE;
}

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4. Summary

By using jQuery, we can easily save query records. This method is simple and easy to use, and can also meet the query record saving needs of most websites.

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