将列表传递给 freemarker
Java 文件
for(..){
java.util.List opslist = new ArrayList();
opr.setOperationName(operation.getName()); //gets operation name (iterate and get n no of names) sets it to opr
System.out.println(opr.getOperationName());//gets all the set values n prints it(jus to chack that all values r getting set)
opslist.add(opr.getOperationName());//putting those valies into a list
datamodel.put("opslist", opslist.toArray(new String[]{}));//putting it into a hash map with key as opslist and value as opslist object
}
Freemarker 模板
<#list opslist as x> //read the values from the key "opslist" (gets only one value)
${x} //print values one by one(it prints only one value) </#list>
java 文件的输出是
get
set
value
usage
Freemarket 模板的输出是
usage
为什么只得到最后一个值打印出来了吗？
有人可以告诉我在 freemarker 模板中执行此操作的正确方法吗？
Java File
for(..){
java.util.List opslist = new ArrayList();
opr.setOperationName(operation.getName()); //gets operation name (iterate and get n no of names) sets it to opr
System.out.println(opr.getOperationName());//gets all the set values n prints it(jus to chack that all values r getting set)
opslist.add(opr.getOperationName());//putting those valies into a list
datamodel.put("opslist", opslist.toArray(new String[]{}));//putting it into a hash map with key as opslist and value as opslist object
}
Freemarker Template
<#list opslist as x> //read the values from the key "opslist" (gets only one value)
${x} //print values one by one(it prints only one value) </#list>
output of the java file is a
get
set
value
usage
output of Freemarket template is
usage
Why is only last value getting printed?
Can someone tell me the right way to do inside freemarker template?
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看起来您正在为列表中的每个元素创建一个新的 opslist。这样只有最后一个元素被传递给 freemarker。
只需将 List opslist = new ArrayList();在 for 循环前面
it looks like you are creating a new opslist for each element in your list. in this way only the last element is passed to freemarker.
just put List opslist = new ArrayList(); in front of the for loop
那是因为您在 for 循环的每次迭代中创建一个新列表。此外，您将在数据模型映射中为同一键添加 4 个列表。应修正如下：
That's because you are creating a new list in every iteration of the for loop. Also, you are adding 4 lists for the same key, in datamodel map. It should be corrected as below: