Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
226 views
in Technique[技术] by (71.8m points)

java - Read data from HashMap using JSTL tag in JSP without using for each or for loop

I want to read data from a hash map in JSP, but without the use of JSTL <c:forEach> or a for loop. How can I do this?

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Answer

0 votes
by (71.8m points)

You need to know the keys beforehand.

${map.key}

The above gets the value of map.get("key").


Or if the key contains dots

${map['key.with.dots']}

This gets the value of map.get("key.with.dots").


Or if it's a dynamic key

${map[dynamicKey]}

This gets the value of map.get(dynamicKey).


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

2.1m questions

2.1m answers

60 comments

56.9k users

...