list转换json

使用依赖

        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.28</version>
        </dependency>

JSON.toJSONString将list转换成正确的格式

        List rlist = new ArrayList();
        rlist.add(map1);
        Object parse = JSONObject.parse(JSON.toJSONString(rlist));