Detailed explanation of the use of JsChart components

This time I will bring you a detailed explanation of the use of JsChart components. What are the precautions when using JsChart components? The following is a practical case, let's take a look.

What is JsChart?

JSChart can generate icons on web pages, which are often used for statistical information. It is a very easy-to-use JS component.

Using JsChart

One. Import jscharts.js

II. Write the jscharts.jsp test page

1. Download the JScharts library. Download the JScharts library from the official website. We use the jscharts.js file in the compressed package. It's about 150KB.

Use JScharts library Include JScharts library in web page files (such as .html or .jsp).

<script></script>

Define the container To display the image generated by JScharts on the web page file, you need to put the image into the web page container. We usually use the

tag to define this web page container, and it is mandatory to specify a unique ID value for this p element. For example:

<p>这里将用来显示图形报表</p>

Note: The content in this p container will be replaced by JScharts images.

Display JScharts image Next, we need to write a small amount of code to display a linear graph. First, we must prepare the data required for the image. We can use JavaScript array to provide data. Each element in the array is composed of 2 elements

<script>
 var myData = new Array([ "商品1", 20 ], [ "商品2", 10 ], [ "商品3", 30 ], [ "商品4", 10 ],
  [ "商品5", 5 ]);
 var myChart = new JSChart(&#39;chartcontainer&#39;, &#39;line&#39;);
 myChart.setDataArray(myData);
 myChart.draw();
 </script>

5. Use details Description

 <p>这里将用来显示图形报表</p>
 <script>
 //支持js二维数组、json格式、xml格式数据源
 var myData = new Array([ "商品1", 20 ], [ "商品2", 10 ], [ "商品3", 30 ], [ "商品4", 10 ],
  [ "商品5", 5 ]);
  //第二个参数值有：line,bar,pie分别表示用线形图、柱状图、饼图来展示报表
 var myChart = new JSChart(&#39;chartcontainer&#39;, &#39;line&#39;);
 //数据源处理方式一：setDataArray(myData)使用js数组
 //myChart.setDataArray(myData);
 //数据源处理方式二：setDataJSON使用json格式数据
 //myChart.setDataJSON("data.json");
 //数据源处理方式三：setDataXML使用xml格式数据
 myChart.setDataXML("data.xml");
 
 myChart.setTitle(&#39;测试报表&#39;);
 
 myChart.draw();
 </script>
 


统计指定时间段向各个供应商的采购金额
使用selectsupplier.jsp
action:
@Resource
 private AccountRecordsService accountRecordsService;
 @RequestMapping("/selectSupplier")
 @ResponseBody
 public Object selectSupplier(String start,String end){
 System.out.println("start:"+ start+"||end:"+end);
 Map paramMap =new HashMap();
 paramMap.put("start", start);
 paramMap.put("end", end);
 return accountRecordsService.selectSupplier(paramMap);
 }
public interface AccountRecordsService extends BaseService {
 List

I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the php Chinese website!

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