好，
这是持有人对象：
public class ComplexJacksonObject extends BaseJsonObject {
public int Start;
public int Count;
public Person MyPerson;
public List<String> Strings;
public class Person extends BaseJsonObject {
public String Firstname;
public String Lastname;
public Address Where;
}
public class Address extends BaseJsonObject {
public String Street;
public int Number;
}
}
这是我如何初始化它：
ComplexJacksonObject cjo = new ComplexJacksonObject();
cjo.Count = 1;
cjo.Start = 2;
cjo.Strings = new ArrayList<String>();
cjo.Strings.add("One");
cjo.Strings.add("Two");
cjo.MyPerson = cjo.new Person();
cjo.MyPerson.Firstname = "Fi\",=[]{}rst";
cjo.MyPerson.Lastname = "Last";
cjo.MyPerson.Where = cjo.new Address();
cjo.MyPerson.Where.Street = "Street";
cjo.MyPerson.Where.Number = 15;
String result = cjo.toQueryString();
// Strings=%5B%22One%22%2C%22Two%22%5D&MyPerson=%7BFirstname%3A"Fi%5C%5C%22%2C%3D%5B%5D%7B%7Drst"%2CLastname%3A%22Last%22%2CWhere%3A%7BStreet%3A%22Street%22%2CNumber%3A15%7D%7D&Start=2&Count=1
最后，使这种情况发生的方法：
public String toQueryString() {
StringBuilder sb = new StringBuilder();
for (Field field : this.getClass().getDeclaredFields()) {
if (sb.length() > 0) {
sb.append("&");
}
Class cls = field.getType().getSuperclass();
// serializing my complex objects - they all inherit from BaseJsonObject class
if (cls != null && cls.equals(BaseJsonObject.class)) {
BaseJsonObject bjo = (BaseJsonObject) getFieldValue(field);
String str = toJson(bjo, true);
sb.append(field.getName()).append("=").append(Uri.encode(str));
}
// serializing lists, they are all List<T>
else if (field.getType().equals(List.class)) {
List bjo = (List) getFieldValue(field);
String val = toJson(bjo, false);
sb.append(field.getName()).append("=").append(Uri.encode(val));
}
// serializing simple fields
else {
Object bjo = getFieldValue(field);
String val = toJson(bjo, false).replaceAll("^\"|\"$", "");
sb.append(field.getName()).append("=").append(Uri.encode(val));
}
}
return sb.toString();
}
private Object getFieldValue(Field field) {
try {
return field.get(this);
} catch (IllegalArgumentException e) {
e.printStackTrace();
} catch (illegalaccessexception e) {
e.printStackTrace();
}
return null;
}
private static ObjectMapper generateMapper() {
ObjectMapper om = new ObjectMapper();
// om.configure(DeserializationFeature.FAIL_ON_UNKNowN_PROPERTIES, false);
om.setDateFormat(new JacksonSimpleDateFormat());
return om;
}
public String toJson() {
try {
return generateMapper().writeValueAsString(this);
} catch (JsonProcessingException e) {
e.printStackTrace();
return null;
}
}
public String toJson(Object o, boolean noQuoteProperties) {
try {
ObjectMapper om = generateMapper();
if (noQuoteProperties) {
om.configure(com.fasterxml.jackson.core.JsonGenerator.Feature.QUOTE_FIELD_NAMES, false);
om.configure(com.fasterxml.jackson.core.JsonParser.Feature.ALLOW_UNQUOTED_FIELD_NAMES, true);
}
return om.writeValueAsString(o);
} catch (JsonProcessingException e) {
e.printStackTrace();
return null;
}
}
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