JavaMail tutorial: parsing mail (5)

In the fourth part of the previous introduction to JavaMail, we can't read the content printed on the console. In fact, it's not easy for us to analyze a complex email by ourselves. The format and specification of the email are very complex. However, the browser we use has built-in data processing modules for parsing various data types. We only need to specify which data type the data stream belongs to before transmitting the data stream to the browser, and then all parsing operations are automatically completed by the browser. The following figure can well illustrate the steps of parsing mail