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解析JSON与杰克逊时出现问题。我有一个POJO对象,由另一个包裹。与杰克逊Java解析JSON
这里是我的代码:
in main:
ObjectMapper mapper = new ObjectMapper();
List<ItemBean> mpl2 = mapper.readValue(col.toString(),new TypeReference<List<ItemBean>>() {});
my POJO class:
public class ItemBean implements Serializable {
private List<Item> items;
@JsonProperty("Item")
public List<Item> getItems() {
return items;
}
public void setItems(List<Item> items) {
this.items = items;
}
}
public class Item implements Serializable{
public String field1;
public Integer field2;
public static final class Field3 extends GenericJson {
private String subfield1;
private String subfield2;
}
}
这里是抛出的异常:
org.codehaus.jackson.map.exc.UnrecognizedPropertyException: Unrecognized field "item" (Class bean.item), not marked as ignorable
at [Source: [email protected]; line: 4, column: 16] (through reference chain: bean.ItemBean["items"]->bean.Item["item"])
JSON看起来在这样的方式:
["{\n
\"items\":
[
\n {
\n \"item\": {
\n \"field1\": \"val1\",
\n \"field2\": \"val2\",
\n \"field3\": [
\n {
\n \"subfield1\": subval
\n \"subfield2\": subval
\n }
\n ]
\n }
\n },
\n \"item\": {
\n \"field1\": \"val1\",
\n \"field2\": \"val2\",
\n \"field3\": [
\n {
\n \"subfield1\": subval
\n \"subfield2\": subval
\n }
\n ]
\n }
\n },
\n \"item\": {
\n \"field1\": \"val1\",
\n \"field2\": \"val2\",
\n \"field3\": [
\n {
\n \"subfield1\": subval
\n \"subfield2\": subval
\n }
\n ]
\n }
\n },
etc...... may I haven't closed brackets correctly, but they are correct :)
}
]
"]
POJO完全重复的领域JSON对象。
JSON的外观如何? – Thomas 2012-07-05 14:42:32
@Thomas补充了json – 2012-07-05 14:55:11