freemarkerでMapのデータを回す2+1の方法 ref: http://qiita.com/wataru420/items/08b9bc2b55a52293c824

file0.txt

<#assign h = {"name":"mouse", "price":50}>

file1.txt

<#list h?keys as key>
    ${key} = ${h.get(key)}
</#list>

file2.txt

<#list h.entrySet() as entry>  
  ${entry.key} = ${entry.value}
</#list>

file3.txt

<#list h?keys?sort as key>
    ${key} = ${h.get(key)}
</#list>