在spring message.properties中，如何在使用错误代码作为键时确保错误消息的换行符？

Question

In messages.properties :

error.code=This is error message.\nThis is next line of error message.

Now, when I set " errors.rejectValue " with this " error.code " for a form field, I cannot get the line break of '\\n' to display on the jsp page when displaying the error message using the form:errors element.

Instead of '\\n' , using <br/> also does not work and gets displayed as is on the page.

Answer 1

为了显示一个<br>作为换行符，或者错误消息体中的任何其他html标签生效，例如<b> ，只需在标签级别通过添加htmlEscape="false"将html转义为关闭form:errors元素。

Answer 2

The layout of distinct lines in an HTML page is not really something that a message bundle can deal with, it's just not suitable for the task. If you need multiple lines to be displayed, then realistically you're going to need multiple messages, with multiple entries in the properties file.

Perhaps you could cook up something which iterates over a sequence of properties, with something like this in your properties file:

error.code.1=This is error message.
error.code.2=This is next line of error message.

It then becomes the job of the JSP to render the sequence of messages. Not very elegant, though, but I can't think of a better solution right now :)

Answer 3

i had the same problem while loading the messages from the database, meaning that the '\\n' (new line) sequence was escaped. so here is the sample solution, replace the "\\\\n" with "\\n" :

String twoLinesMessage=((String)context.getMessage("error.code", null, locale)).replace("\\n","\n"); 

Answer 4

扩展spring标签form:errors并将转换从\\n添加到<br />也是一种非常美丽的解决方案，但可能会起作用。