正如我在对问题的评论中所指出的,这里是展示如何做到这一点的测试:
public class JSONTest {
public static class FullyTypedThing {
public int id;
public String name;
public List<Photos> photos = Lists.newArrayList();
public String username;
public static class Photos {
public String name;
public String url;
}
}
private static final String json = "[ { \"id\" : 33147, \"name\" : \"Refinancing\", \"photos\" : [ {"
+ "\"name\" : \"347.png\", \"url\" : \"/loans/568/photos/092\" } ],"
+ "\"username\" : \"zach1985\"} , { \"id\" : 7693, \"name\" : \"Stuff\","
+ "\"photos\" : [ { \"name\" : \"newpic1.png\", \"url\" : \"/loans/123446/photos/890\" } ],"
+ "\"username\" : \"sengaia\" } ]";
@Test
public void roundtrip() throws IOException {
ObjectMapper mapper = new ObjectMapper();
List<FullyTypedThing> res = Lists.newArrayList(
mapper.readValue(json, FullyTypedThing[].class));
assertEquals(2, res.size());
assertEquals(33147, res.get(0).id);
assertEquals("Refinancing", res.get(0).name);
assertEquals("347.png", res.get(0).photos.get(0).name);
assertEquals("/loans/568/photos/092", res.get(0).photos.get(0).url);
assertEquals(7693, res.get(1).id);
assertEquals("Stuff", res.get(1).name);
assertEquals("newpic1.png", res.get(1).photos.get(0).name);
assertEquals("/loans/123446/photos/890", res.get(1).photos.get(0).url);
assertEquals("[{\"id\":33147,\"name\":\"Refinancing\",\"photos\":"
+ "[{\"name\":\"347.png\",\"url\":\"/loans/568/photos/092\"}],"
+ "\"username\":\"zach1985\"},{\"id\":7693,\"name\":\"Stuff\","
+ "\"photos\":[{\"name\":\"newpic1.png\",\"url\":\"/loans/123446/photos/890\"}],"
+ "\"username\":\"sengaia\"}]", mapper.writeValueAsString(res));
}
}
ObjectMapper
将您的JSON转换为对象。@Oleg指出,您可以使用:new ObjectMapper().readValue(data, FullyTypedThing.class)
- 如果要读取数组,只需将该类的数组传递给相同的方法,例如:new ObjectMapper().readValue(data, FullyTypedThing[].class)
。 - dutoitnsObjectMapper
(Jackson有一些选项)。但我认为最好先开始 - 然后尝试调整ObjectMapper
,如果需要,可以通过调用其#configure(..)
和#setVisibility(..)
方法进行调整。 - dutoitns