字符串转List<Map>对象，直接上代码：

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.TypeReference;

import java.util.List;
import java.util.Map;

public class JSONTest {
    public static void main(String[] args) {
        String str = "[{\"A\": \"喝水\"}, {\"B\": \"喝牛奶\"}, {\"C\": \"虫子\"}, {\"D\": \"吃牛肉\"}, {\"E\": \"吃羊肉\"}]";
        List<Map<String, String>> listMap = JSON.parseObject(str, new TypeReference<List<Map<String, String>>>() {
        });
        System.out.println("listMap = " + listMap);
        System.out.println("listMap = " + listMap.get(1).get("B"));
    }
}