I remember working on a project with a group of developers and they always wanted static html text to be inside of an out tag (<c:out value="words" />). I don't remember why this was the case.
我记得我和一组开发人员一起做过一个项目，他们总是希望静态html文本放在out标记的内部(
Is this really a best practice when building jsp pages? What are the advantages/disadvantages of such an approach?
在构建jsp页面时，这真的是最佳实践吗?这种方法的优点/缺点是什么?
2 个解决方案
#1
10
It is a terrible idea for static text. You then have no barrier as to what is static and what is dynamically generated.
对于静态文本来说，这是一个糟糕的想法。那么，对于什么是静态的，什么是动态生成的，就没有障碍了。
Besides which, on Servlet Spec 2.3+ you can have dynamic text mixed with static text as:
此外，在Servlet Spec 2.3+中，您可以将动态文本与静态文本混合为:
This is static, not ${dynamic} text.
这是静态的，不是${dynamic}文本。
The only reasons to use c:out tags, in my experience:
根据我的经验，使用c:out标签的唯一原因是:
-
You're using an older servlet spec, and need them to output DYNAMIC text in some fashion
您正在使用一个旧的servlet规范，并需要它们以某种方式输出动态文本
-
You want to escape
HTMLoutput to avoid using<>, etc, replacing ampersands with their control codes, etc.您希望转义HTML输出，以避免使用<>等，用它们的控制代码替换符号，等等。
Otherwise, having them use static text confuses the programmer or maintainer...now where did I put that EL? It was in a c:out tag...but so was fifty other lines of static text!
否则，让他们使用静态文本会让程序员或维护者感到困惑……我把EL放在哪里了?在c:out标签中……但是另外50行静态文本也是如此!
#2
3
If you're just printing out plain text it's better to do it in HTML. The advantage of the c:out tag is that you can evaluate expressions inside the tag.
如果你只是打印纯文本，最好是用HTML。c:out标记的优点是可以计算标记内部的表达式。
<c:out value="Hello ${user.firstName} ${user.lastName}"/>
#1
10
It is a terrible idea for static text. You then have no barrier as to what is static and what is dynamically generated.
对于静态文本来说，这是一个糟糕的想法。那么，对于什么是静态的，什么是动态生成的，就没有障碍了。
Besides which, on Servlet Spec 2.3+ you can have dynamic text mixed with static text as:
此外，在Servlet Spec 2.3+中，您可以将动态文本与静态文本混合为:
This is static, not ${dynamic} text.
这是静态的，不是${dynamic}文本。
The only reasons to use c:out tags, in my experience:
根据我的经验，使用c:out标签的唯一原因是:
-
You're using an older servlet spec, and need them to output DYNAMIC text in some fashion
您正在使用一个旧的servlet规范，并需要它们以某种方式输出动态文本
-
You want to escape
HTMLoutput to avoid using<>, etc, replacing ampersands with their control codes, etc.您希望转义HTML输出，以避免使用<>等，用它们的控制代码替换符号，等等。
Otherwise, having them use static text confuses the programmer or maintainer...now where did I put that EL? It was in a c:out tag...but so was fifty other lines of static text!
否则，让他们使用静态文本会让程序员或维护者感到困惑……我把EL放在哪里了?在c:out标签中……但是另外50行静态文本也是如此!
#2
3
If you're just printing out plain text it's better to do it in HTML. The advantage of the c:out tag is that you can evaluate expressions inside the tag.
如果你只是打印纯文本，最好是用HTML。c:out标记的优点是可以计算标记内部的表达式。
<c:out value="Hello ${user.firstName} ${user.lastName}"/>