Why is my JFreeChart TimeseriesCollection not displaying the correct time information from my MySQL database?

Populating JFreechart TimeSeriesCollection from a MySQL Database

The issue is most likely related to the conversion of the String 'data' to a Date object. When the conversion takes place, the time information may be lost due to precision issues.

Referring to the example in your original post, the following code is responsible for converting the String 'data' to a Date object:

<code class="java">SimpleDateFormat sdf2 = new SimpleDateFormat("yyyy-MM-dd HH:mm");
Date dateI = sdf2.parse(data);</code>

To resolve this issue, it is crucial to ensure that the SimpleDateFormat pattern exactly matches the format of the String 'data'. This ensures that the conversion preserves the time information and allows the chart to display the correct times.

In the example provided, the format of the String 'data' appears to be "yyyy-MM-dd HH:mm:ss". If this is the case, the SimpleDateFormat pattern should be adjusted accordingly:

SimpleDateFormat sdf2 = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
Date dateI = sdf2.parse(data);

Here is the corrected portion of the code:

SimpleDateFormat sdf2 = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
Date dateI = sdf2.parse(data);

By implementing this correction, the chart should accurately display the time information from the MySQL database.

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