[英]How to specify default value for RequestParam of type Map<String, String>?
有沒有辦法為Map<String, String>類型的RequestParam指定默認值？
public List<Results> getResults(@RequestParam(defaultValue="{sort=date, date.dir=asc}" Map<String, String> searchParams) {
for(String key: searchParams.keySet()) {
System.out.println(searchParams.get("key")); //Doesn't print anything.
}
}
上面沒有打印任何內容，因為Map已初始化，但未填充。 有沒有辦法為上面的Map指定默認值？
將 Map 替換為您的自定義 class，如 MySearchCriteria 並為字段提供默認值
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