java 在java中将对象转换为Map<String, String>
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Convert object to Map<String, String> in java
提问by javaUser
Please suggest how to convert an Object to Map<String, String>in java.
Tried org.apache.commons.beanutils.BeanMap(object).
This is returning Map<String, Object only
请建议如何Map<String, String>在java中将对象转换为。试过 org.apache.commons.beanutils.BeanMap(object)。这是回来了Map<String, Object only
回答by Sharon Ben Asher
How about PropertyUtils.describe(object)though it works only for Java Beans (meaning Java Objects that implement getters)
PropertyUtils.describe(object)怎么样，虽然它只适用于 Java Beans（意思是实现 getter 的 Java 对象）
回答by Vikrant Kumar
I am assuming that you want to convert "Object[][] obj" to Map. In that case here is my solution:
我假设您想将“Object[][] obj”转换为 Map。在这种情况下，这是我的解决方案：
public static Map<String, String> convert2DArrayObjectToMap(Object[][] object)
{
Map<String, String> map = new TreeMap<>();
if (object != null)
{
for (int i = 0; i < object.length; i++)
{
if (object[i] != null)
{
for (int j = 0; j < object[i].length; j++)
{
map.putAll((TreeMap<String, String>) object[i][j]);
}
}
}
}
return map;
}
回答by Nagarz
Is there any reason for you not making it manually? It's not that much of a hassle, and you can implement it easily, something like this.
你有什么理由不手动制作吗？这不是那么麻烦，你可以很容易地实现它，就像这样。
HashMap<String, String> map = new HashMap<>();
//obj represents any object you wanna put inside the map
String key = "your key";
map.put(key, obj.toString());
if the object you want to turn into a map is an iterable object such as a list you can try something like this.
如果你想变成地图的对象是一个可迭代的对象，比如列表，你可以尝试这样的事情。
ArrayList<Object> list = new ArrayList<>();
HashMap<String, String> map = new HashMap<>();
Integer i = 0;
for (Object s:list) {
map.put(String.valueOf(i), s.toString());
i++;
}
回答by dly
Iterate over the Map<String, Object>and use newMap.put(key, value.toString());to fill a new Map<String, String>
迭代Map<String, Object>并用于newMap.put(key, value.toString());填充一个新的Map<String, String>
