Question

我将json发布到我的kafka主题之一：

{
 "hash": "ABC",
 "height": 107900,
 "time": 1297626305,
 "txs": [
    {
        "hash": "XYZ1",
        "index": 0,
        "version": 1,
        "inputs": [
            {
                "prevout": {
                    "hash": "IN1",
                    "index": 4294967295
                },
                "script": "045285021b0173",
                "address": null
            }
        ],
        "outputs": [
            {
                "value": 5001000000,
                "address": "OUT1"
            }
        ],
        "locktime": 0
    },
    {
        "hash": "XYZ2",
        "index": 1,
        "version": 1,
        "inputs": [
            {
                "prevout": {
                    "hash": "IN12",
                    "index": 1
                },
                "coin": {
                    "version": 1,
                    "height": 107899,
                    "value": 34645000000,
                    "address": "IN2",
                    "coinbase": false
                }
            }
        ],
        "outputs": [
            {
                "value": 6000000,
                "address": "OUT2"
            },
            {
                "value": 70000000,
                "address": "OUT4"
            }
        ],
        "locktime": 0
    }
 ]
}

我想要得到像这样的结果：

 {
  address: IN2
  result : {
     output : OUT2,
     value: 6000000
  },
  result : {
     output : OUT4,
     value: 70000000
  },

我正在尝试使用帖子Parsing JSON data using Apache Kafka Streaming中给出的相同方法，但出现以下错误：

我正在尝试创建不同的POJO，并尝试使用上述参考答案中提供的解决方案。但出现错误：

Error: A JNI error has occurred, please check your installation and try again
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/kafka/common/serialization/Deserializer
    at java.lang.Class.getDeclaredMethods0(Native Method)
    at java.lang.Class.privateGetDeclaredMethods(Class.java:2701)
    at java.lang.Class.privateGetMethodRecursive(Class.java:3048)
    at java.lang.Class.getMethod0(Class.java:3018)
    at java.lang.Class.getMethod(Class.java:1784)
    at sun.launcher.LauncherHelper.validateMainClass(LauncherHelper.java:544)
    at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:526)
    Caused by: java.lang.ClassNotFoundException: 
    org.apache.kafka.common.serialization.Deserializer
    at java.net.URLClassLoader.findClass(URLClassLoader.java:382)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    ... 7 more

我尝试在运行java -cp时将此类添加到classpath 但是，一旦我为这个jar添加，其他的jar就会出现错误。然后这样下去.. :( 请提供解决方案。

谢谢。

JSONSchema：L无法序列化来自kafka流的反序列化JSON

0 个答案: