renderJson（）返回的数据格式

首先，有一个实体类，KvmCluster(不用管父类):

public class KvmCluster extends BaseReport{
    /**
     * 时间
     */
    public String timeStamp;

    /**
     * 主机名
     */
    public String nodeName;
    /**
     * cpu核数
     */
    public String avgNumberCpu;
    /**
     * 内存大小
     */
    public String avgTotalMemory;
    /**
     * cpu最高使用率
     */
    public String maxCpuUtilization;
    /**
     * cpu平均使用率
     */
    public String avgCpuUtilization;
    /**
     * 内存最高使用率
     */
    public String maxMemoryUtilization;
    /**
     * 内存平均使用率
     */
    public String avgMemoryUtilization;
}

renderJson(Object obj) 返回KvmCluster:

测试方法：

public static void testRenderJson(){

        KvmCluster kc = new KvmCluster();
        kc.avgCpuUtilization = i+"111";
        kc.avgMemoryUtilization = i+ "222";
        kc.avgNumberCpu = i+"333";

        renderJSON(kc);
    }

测试结果：

{"avgNumberCpu":"333","avgCpuUtilization":"111","avgMemoryUtilization":"222"}

没什么好说得。

---

renderJson() 返回List

测试代码：

public static void testRenderJson(){

        List list1 = new ArrayList<>();
        for(int i=0;i<3;i++){
            KvmCluster kc = new KvmCluster();
            kc.avgCpuUtilization = i+"111";
            kc.avgMemoryUtilization = i+ "222";
            kc.avgNumberCpu = i+"333";
            list1.add(kc);
        }
        renderJSON(list1);
    }

测试结果：

[{"avgNumberCpu":"0333","avgCpuUtilization":"0111","avgMemoryUtilization":"0222"},{"avgNumberCpu":"1333","avgCpuUtilization":"1111","avgMemoryUtilization":"1222"},{"avgNumberCpu":"2333","avgCpuUtilization":"2111","avgMemoryUtilization":"2222"}]

标准的JsonArray格式

---

renderJson() 返回Map

测试代码：

 public static void testRenderJson(){

        Map map = new HashMap<>();

        for(int i=0;i<3;i++){
            KvmCluster kc = new KvmCluster();
            kc.avgCpuUtilization = i+"111";
            kc.avgMemoryUtilization = i+ "222";
            kc.avgNumberCpu = i+"333";
            map.put("key_"+i, kc);
        }
        renderJSON(map);
    }

测试结果：

{"key_2":{"avgNumberCpu":"2333","avgCpuUtilization":"2111","avgMemoryUtilization":"2222"},"key_1":{"avgNumberCpu":"1333","avgCpuUtilization":"1111","avgMemoryUtilization":"1222"},"key_0":{"avgNumberCpu":"0333","avgCpuUtilization":"0111","avgMemoryUtilization":"0222"}}

---

renderJson() 返回Map>

测试代码：

 public static void testRenderJson(){
        List list1 = new ArrayList<>();
        List list2 = new ArrayList<>();
        Map> mapList = new HashMap<>();
        for(int i=0;i<3;i++){
            KvmCluster kc = new KvmCluster();
            kc.avgCpuUtilization = i+"111";
            kc.avgMemoryUtilization = i+ "222";
            kc.avgNumberCpu = i+"333";
            list1.add(kc);
        }

        for(int i=0;i<3;i++){
            KvmCluster kc = new KvmCluster();
            kc.avgCpuUtilization = i+"aaa";
            kc.avgMemoryUtilization = i+ "bbb";
            kc.avgNumberCpu = i+"ccc";
            list2.add(kc);
        }

        mapList.put("map1", list1);
        mapList.put("map2", list2);
        renderJSON(mapList);
    }

测试结果：

{"map2":[{"avgNumberCpu":"0ccc","avgCpuUtilization":"0aaa","avgMemoryUtilization":"0bbb"},{"avgNumberCpu":"1ccc","avgCpuUtilization":"1aaa","avgMemoryUtilization":"1bbb"},{"avgNumberCpu":"2ccc","avgCpuUtilization":"2aaa","avgMemoryUtilization":"2bbb"}],"map1":[{"avgNumberCpu":"0333","avgCpuUtilization":"0111","avgMemoryUtilization":"0222"},{"avgNumberCpu":"1333","avgCpuUtilization":"1111","avgMemoryUtilization":"1222"},{"avgNumberCpu":"2333","avgCpuUtilization":"2111","avgMemoryUtilization":"2222"}]}

美化后的格式如下：