如何使用Stream流操作将list中所有map的某个值拼接成字符串？

Map m =new HashMap();

m.put(“name”,“樟树街”);

Map m1 =new HashMap();

m.put(“name”,“樟树街1”);

Map m2 =new HashMap();

m.put(“name”,“樟树街1”);

这一段内容插入的都在m里面…

修改后

package com.huifer.concurrence.issues;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.List;

import java.util.Map;

import java.util.stream.Collectors;

public class C {

public static void main(String[] args) {

List> list = new ArrayList<>();

Map m = new HashMap();

m.put(“name”, “樟树街”);

Map m1 = new HashMap();

m1.put(“name”, “樟树街1”);

Map m2 = new HashMap();

m2.put(“name”, “樟树街1”);

list.add(m);

list.add(m2);

list.add(m1);

String s= list.stream().map(p->p.get(“name”)).collect(Collectors.joining(“,”));

System.out.println(s);

}

}