The JSP code on Eclipse is highlighted, and brackets are paired and double-clicked to select all. The code prompt is "Link ".

The JSP code on Eclipse is highlighted, and brackets are paired and double-clicked to select all. The code prompt is "Link ".

1. JSP code highlighted
Check whether the file association is correct.
Window-> preference-> General-> editors-> File Associations
Associate the JSP suffix with the JSP editor and set it to the default

2. JSP code prompt
In the properties-> JAVA build path-> libraries-> Add library-> Server Runtime of the project, select the required Library (you need to configure the server, my tomcat server.
Address: http://langkes.blog.163.com/blog/static/39591764201061701442668/

3. bracket matching and double-click all selection (highlighted in brackets)