Question

我正在尝试使用jackson库序列化和反序列化嵌套的对象列表。我可以用所需的格式成功地序列化它，但很难将它反序列化回POJO。

范围：

@AllArgsConstructor
public class Scope {
    @Getter
    private List<TypeObjectPair> scope;
}

TypeObjectPair：

@AllArgsConstructor
public class TypeObjectPair {

    private final String canonicalName;
    private final Object object;

    @JsonIgnore
    public Object getObject() {
        return object;
    }

    /**
     * Defines non-static and no-argument method as "any getter". It behaves as an accessor for getting a set of key-value pairs. @JsonAnyGetter must return a Java Map
     */
    @JsonAnyGetter
    public Map<String, Object> getData() {
        return ImmutableMap.of(canonicalName, object);
    }
}

的TestObject：

import lombok.AllArgsConstructor;
import lombok.Getter;

import java.util.Random;

public class TestUtils {

    public static TestObject generateRandomTestObject(){
        Random random = new Random();
        return new TestObject(random.nextInt(), random.nextInt(), random.nextInt());
    }

    @AllArgsConstructor
    @Getter
    public static class TestObject{
        private final Integer foo;
        private final Integer bar;
        private final Integer zar;
    }
}

输入序列化：

TestUtils.TestObject testObject1 = TestUtils.generateRandomTestObject();
TestUtils.TestObject testObject2 = TestUtils.generateRandomTestObject();

List<Scope> scopes = new ArrayList<>();
scopes.add(new Scope(Arrays.asList(new TypeObjectPair(testObject1.getClass().getCanonicalName(), testObject1))));
scopes.add(new Scope(Arrays.asList(new TypeObjectPair(testObject2.getClass().getCanonicalName(), testObject2))));

输出Json：

我现在有Json。

[
  "{\"scope\":[{\"com.example.diagnostic.TestUtils.TestObject\":{\"foo\":-2110569858,\"bar\":459860579,\"zar\":-392750688}},{\"com.example.diagnostic.TestUtils.TestObject\":{\"foo\":728145129,\"bar\":-1001861122,\"zar\":-1906803097}}]}",
  "{\"scope\":[{\"com.example.diagnostic.TestUtils.TestObject\":{\"foo\":1911640128,\"bar\":-1827459393,\"zar\":519274751}},{\"com.example.diagnostic.TestUtils.TestObject\":{\"foo\":-1287628009,\"bar\":726563108,\"zar\":2114775662}}]}"
]

将反序列化的最佳和最干净的方法是什么？

Jackson，Deserialise嵌套对象列表。

0 个答案: