Struts2 Oracle m² m2 unit storage problems

When the M role is input on the page, because the value "m role" Oracle will understand that there is a format in the content, that is, Oracle's responsibility can only store the content, the format is not the responsibility of the database, therefore, if you operate the Oracle database directly, the M branch will be changed to the m3 storage database.

But we useProgramDuring the operation, M & sup3 is parsed as an HTML string by struts2html encoding and stored in the library.
However, when the S: Property tag is used for output, it will encode the content again,
That is, if M & sup3; Content & is encoded as & amp ;,Source codeIn M & sup3; is parsed as M & amp; sup3; Output

Here, we can impose a limit on the part of the final output page, that is, using the escape = "false" of S: property to make it unencoded, that is, the content of M & sup3; in the output data inventory on the page is displayed.