Can you do something like this in a velocity template?
你能在速度模板中做这样的事情吗?
#set ($map = $myobject.getMap() )
#foreach ($mapEntry in $map.entrySet())
<name>$mapEntry.key()</name>
<value>$mapEntry.value()</value>
#end
it outputs blank tags like so:
它输出空白标签如下:
<name></name>
and
和
<value></value>
What am I doing wrong?
我做错了什么?
4 个解决方案
#1
91
Your mistake is referring to key and value as methods (with trailing "()" parenthesis) instead of as properties. Try this:
您的错误是将键和值作为方法引用(带有末尾的“()”括号),而不是作为属性引用。试试这个:
#set ($map = $myobject.getMap() )
#foreach ($mapEntry in $map.entrySet())
<name>$mapEntry.key</name>
<value>$mapEntry.value</value>
#end
In other words, use either a property, like mapEntry.key, or the method, like mapEntry.getKey().
换句话说,可以使用属性,比如mapEntry。key或方法,如mapEntry.getKey()。
#2
4
I'm looking for a way to loop through a HashMap in velocity, and this will work too.
我正在寻找一种方法来循环遍历一个HashMap in velocity,这个方法也可以。
#set ($map = $myobject.getMap())
#foreach( $key in $map.keySet())
<name>$key</name>
<value>$resume.get($key)</value>
#end
Just like the way you would loop through a HashMap in java.
就像在java中循环一个HashMap那样。
#3
0
Here the Value
这里的价值
itemsValue={data1=1,data2=2,data3=3}
So , we need to iterate the group of value;
我们需要迭代一组值;
foreach ($key in ${itemsValue.keySet()})
if($itemsValue.get($key)==1)
Condition
end
end
In the above code we can see check the value will be like -"data1,data2 etc ..." but after using the get(), we can able to get the instance value.
在上面的代码中,我们可以看到check值将类似于“data1、data2等…”,但是在使用get()之后,我们可以获得实例值。
#4
-1
To clarify (I cannot comment), in general you can use either the Java get methods, or replace them by the corresponding name without with a small letter and without ()
.
为了澄清(我不能评论),通常您可以使用Java get方法,或者用相应的名称替换它们,不用小写字母,不用()。
So $mapEntry.getKey()
or map.key
.
所以mapEntry.getKey美元()或map.key。
#1
91
Your mistake is referring to key and value as methods (with trailing "()" parenthesis) instead of as properties. Try this:
您的错误是将键和值作为方法引用(带有末尾的“()”括号),而不是作为属性引用。试试这个:
#set ($map = $myobject.getMap() )
#foreach ($mapEntry in $map.entrySet())
<name>$mapEntry.key</name>
<value>$mapEntry.value</value>
#end
In other words, use either a property, like mapEntry.key, or the method, like mapEntry.getKey().
换句话说,可以使用属性,比如mapEntry。key或方法,如mapEntry.getKey()。
#2
4
I'm looking for a way to loop through a HashMap in velocity, and this will work too.
我正在寻找一种方法来循环遍历一个HashMap in velocity,这个方法也可以。
#set ($map = $myobject.getMap())
#foreach( $key in $map.keySet())
<name>$key</name>
<value>$resume.get($key)</value>
#end
Just like the way you would loop through a HashMap in java.
就像在java中循环一个HashMap那样。
#3
0
Here the Value
这里的价值
itemsValue={data1=1,data2=2,data3=3}
So , we need to iterate the group of value;
我们需要迭代一组值;
foreach ($key in ${itemsValue.keySet()})
if($itemsValue.get($key)==1)
Condition
end
end
In the above code we can see check the value will be like -"data1,data2 etc ..." but after using the get(), we can able to get the instance value.
在上面的代码中,我们可以看到check值将类似于“data1、data2等…”,但是在使用get()之后,我们可以获得实例值。
#4
-1
To clarify (I cannot comment), in general you can use either the Java get methods, or replace them by the corresponding name without with a small letter and without ()
.
为了澄清(我不能评论),通常您可以使用Java get方法,或者用相应的名称替换它们,不用小写字母,不用()。
So $mapEntry.getKey()
or map.key
.
所以mapEntry.getKey美元()或map.key。