자바 상용 직렬 화 및 반 직렬 화 프레임 워 크 사용 demo
package com.baidu.test;
import java.io.Serializable;
import java.util.List;
import org.msgpack.annotation.MessagePackMessage;
//Msgpack
@MessagePackMessage
public class Student implements Serializable{
private static final long serialVersionUID = -2060550357305407661L;
private Integer id;
private String name;
private String city;
private List<Student> lovers;
public Student(){}
public Student(Integer id, String name, String city) {
super();
this.id = id;
this.name = name;
this.city = city;
}
public Student(Integer id, String name, String city, List<Student> lovers) {
super();
this.id = id;
this.name = name;
this.city = city;
this.lovers = lovers;
}
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getCity() {
return city;
}
public void setCity(String city) {
this.city = city;
}
public List<Student> getLovers() {
return lovers;
}
public void setLovers(List<Student> lovers) {
this.lovers = lovers;
}
@Override
public String toString() {
return "Student [city=" + city + ", id=" + id + ", lovers=" + lovers
+ ", name=" + name + "]";
}
}
package com.baidu.test.other;
import java.io.Serializable;
import java.util.List;
import org.msgpack.annotation.MessagePackMessage;
@MessagePackMessage
public class Teacher implements Serializable{
private static final long serialVersionUID = -2060550357305407661L;
private Integer id;
private String name;
private String city;
private List<Teacher> lovers;
public Teacher(){}
public Teacher(Integer id, String name, String city) {
super();
this.id = id;
this.name = name;
this.city = city;
}
public Teacher(Integer id, String name, String city, List<Teacher> lovers) {
super();
this.id = id;
this.name = name;
this.city = city;
this.lovers = lovers;
}
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getCity() {
return city;
}
public void setCity(String city) {
this.city = city;
}
public List<Teacher> getLovers() {
return lovers;
}
public void setLovers(List<Teacher> lovers) {
this.lovers = lovers;
}
@Override
public String toString() {
return "Teacher [city=" + city + ", id=" + id + ", lovers=" + lovers
+ ", name=" + name + "]";
}
}
package com.baidu.test;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.TypeReference;
import com.alibaba.fastjson.serializer.SerializerFeature;
import com.baidu.test.other.Teacher;
/*
JSON 。Fastjson java bean 。
com.alibaba.fastjson.JSON 。
http://blog.csdn.net/yuanjian19900610/article/details/37737087
*/
public class TestFastJson {
@SuppressWarnings("unchecked")
public static void test002() {
HashMap<String, Object> map = new HashMap<String, Object>();
map.put("username", "zhangsan");
map.put("age", 24);
map.put("sex", " ");
// map
HashMap<String, Object> temp = new HashMap<String, Object>();
temp.put("name", "xiaohong");
temp.put("age", "23");
map.put("girlInfo", temp);
// list
List<String> list = new ArrayList<String>();
list.add(" ");
list.add(" ");
list.add(" ");
map.put("hobby", list);
/*
* JSON ， JSON ， JSON ， [eg:String
* jsonString =
* JSON.toJSONString(map,SerializerFeature.UseSingleQuotes);]
* fastjson SerializerFeature ， 。
*/
String jsonString = JSON.toJSONString(map);
System.out.println("JSON=" + jsonString);
//
HashMap<String, Object> map_unserial = JSON.parseObject(jsonString,
HashMap.class);
System.out.println(map_unserial);
}
public static void main(String[] args) {
test001();
test002();
test003();
test004();
}
//
public static void test003() {
Date date = new Date();
//
System.out.println(JSON.toJSONString(date));
// yyyy-MM-dd HH:mm:ss
System.out.println(JSON.toJSONString(date,
SerializerFeature.WriteDateUseDateFormat));
//
System.out.println(JSON.toJSONStringWithDateFormat(date, "yyyy-MM-dd",
SerializerFeature.WriteDateUseDateFormat));
}
/** */
public static void test004() {
String json = "{\"user\":{\"city\":\" \",\"name\":\"zhangsan\",\"id\":25}}";
Map<String, Student> map = JSON.parseObject(json,
new TypeReference<Map<String, Student>>() {
});
System.out.println(map.get("user"));
}
private static void test001() {
Student studentLover = new Student(11, "name_wjh", "beijing");
List<Student> lovers = new ArrayList<Student>();
lovers.add(studentLover);
lovers.add(new Student(12, "name_wjh", " "));
lovers.add(new Student(13, "name_wjh", " "));
Student student = new Student(1, "name_xx", " ", lovers);
// System.out.println(JSON.toJSONString(student,
// SerializerFeature.QuoteFieldNames));
//
String result = JSON.toJSONString(student);
System.out.println(result);
//
Student student2 = JSON.parseObject(result, Student.class);
System.out.println(student2);
// fastjson ， ,
Teacher teacher = JSON.parseObject(result, Teacher.class);
System.out.println(teacher);
}
}
package com.baidu.test;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import android.util.Base64;
import com.baidu.test.other.Teacher;
import com.caucho.hessian.io.HessianInput;
import com.caucho.hessian.io.HessianOutput;
/*
：
1. Hessian ， ，
2. ， ，Hessian 。
3. ， entity， ：
a entity package package，
b entity ， ， ，
4. ， ， 2， ， List(lists and arrays) & map(maps and dictionaries)
5. Hessian ， ， （ ）
*/
public class TestHessian {
public static byte[] serialize(Object obj) throws IOException {
if (obj == null)
throw new NullPointerException();
ByteArrayOutputStream os = new ByteArrayOutputStream();
HessianOutput ho = new HessianOutput(os);
ho.writeObject(obj);
return os.toByteArray();
}
public static Object deserialize(byte[] by) throws IOException {
if (by == null)
throw new NullPointerException();
ByteArrayInputStream is = new ByteArrayInputStream(by);
HessianInput hi = new HessianInput(is);
return hi.readObject();
}
public static void main(String[] args) throws Exception {
List<Student> students = new ArrayList<Student>();
students.add(new Student(11, "name_wjh", " 11"));
students.add(new Student(12, "name_wjh", " "));
students.add(new Student(13, "name_wjh", " "));
Student myStudent = new Student(10, "xx", "xxx", students);
System.out.println(myStudent);
byte[] buffer = serialize(myStudent);
String str = Base64.encodeToString(buffer, Base64.DEFAULT);
System.out.println(str);
Student student = (Student) deserialize(Base64.decode(str,
Base64.DEFAULT));
System.out.println(student);
//
Teacher teacher = (Teacher) deserialize(Base64.decode(str,
Base64.DEFAULT));
System.out.println(teacher);
}
}
package com.baidu.test;
import java.io.File;
import java.util.ArrayList;
import java.util.List;
import org.codehaus.jackson.map.ObjectMapper;
import com.baidu.test.other.Teacher;
//http://blog.csdn.net/subuser/article/details/19127003
public class TestJackson {
public static void main(String[] args) throws Exception {
List<Student> students = new ArrayList<Student>();
students.add(new Student(11, "name_wjh", " 11"));
students.add(new Student(12, "name_wjh", " "));
students.add(new Student(13, "name_wjh", " "));
Student myStudent = new Student(10, "xx", "xxx", students);
ObjectMapper mapper = new ObjectMapper();
// convert user object to json string, and save to a file
mapper.writeValue(new File("user.json"), myStudent);
// read from file, convert it to user class
Student student = mapper
.readValue(new File("user.json"), Student.class);
System.out.println(student);
Teacher teacher = mapper
.readValue(new File("user.json"), Teacher.class);
System.out.println(teacher);
//
String data=mapper.writeValueAsString(myStudent);
System.out.println(data);
Student student2=mapper.readValue(data.getBytes(), Student.class);
System.out.println(student2);
Teacher teacher2=mapper.readValue(data.getBytes(), Teacher.class);
System.out.println(teacher2);
}
}
package com.baidu.test;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import com.baidu.test.other.Teacher;
import net.sf.json.JSONObject;
import net.sf.json.JsonConfig;
// http://json-lib.sourceforge.net/
public class testJsonlib {
public static void main(String[] args) {
List<Student> students = new ArrayList<Student>();
students.add(new Student(11, "name_wjh", " 11"));
students.add(new Student(12, "name_wjh", " "));
students.add(new Student(13, "name_wjh", " "));
Student myStudent = new Student(10, "xx", "xxx", students);
JSONObject js = JSONObject.fromObject(myStudent);
String str=js.toString();
System.out.println(str);
JSONObject jsonObject = JSONObject.fromObject(str);
/*
JsonConfig jsonConfig = new JsonConfig();
jsonConfig.setRootClass(Student.class);
Map<String, Class> classMap = new HashMap<String, Class>();
classMap.put("lovers", Student.class); // JsonRpcRequest request
jsonConfig.setClassMap(classMap);
*/
Student student = (Student) JSONObject.toBean(jsonObject, Student.class);
System.out.println(student);
//
Teacher teacher = (Teacher) JSONObject.toBean(jsonObject, Teacher.class);
System.out.println(teacher);
}
}
package com.baidu.test;
import java.util.ArrayList;
import java.util.List;
import android.util.Base64;
import com.baidu.test.other.Teacher;
import com.esotericsoftware.kryo.Kryo;
import com.esotericsoftware.kryo.Registration;
import com.esotericsoftware.kryo.io.Input;
import com.esotericsoftware.kryo.io.Output;
public class TestKryo {
private static void test001() {
Kryo kryo = new Kryo();
// kryo.setReferences(true);
// kryo.setRegistrationRequired(true);
// kryo.setInstantiatorStrategy(new StdInstantiatorStrategy());
//
Registration registration = kryo.register(Student.class);
long time = System.currentTimeMillis();
for (int i = 0; i < 2; i++) {
//
Output output = null;
// ByteArrayOutputStream outStream = new ByteArrayOutputStream();
// output = new Output( outStream , 4096);
output = new Output(1, 4096);
List<Student> students = new ArrayList<Student>();
students.add(new Student(11, "name_wjh", " 11"));
students.add(new Student(12, "name_wjh", " "));
students.add(new Student(13, "name_wjh", " "));
Student myStudent = new Student(10, "xx", "xxx", students);
kryo.writeObject(output, myStudent);
byte[] bb = output.toBytes();
output.flush();
String str=Base64.encodeToString(bb, Base64.DEFAULT);
System.out.println(str);
//
Input input = new Input(Base64.decode(str, Base64.DEFAULT));
Student s = (Student) kryo.readObject(input, registration.getType());
System.out.println(s);
input.close();
//
input = new Input(Base64.decode(str, Base64.DEFAULT));
Teacher teacher = (Teacher) kryo.readObject(input, Teacher.class);
System.out.println(teacher);
input.close();
}
time = System.currentTimeMillis() - time;
System.out.println("time:" + time);
}
public static void main(String[] args) throws Exception {
test001();
}
}
package com.baidu.test;
import java.util.ArrayList;
import java.util.List;
import org.msgpack.MessagePack;
import com.baidu.test.other.Teacher;
import android.util.Base64;
public class TestMsgpack {
public static void main(String[] args) throws Exception {
List<Student> students = new ArrayList<Student>();
students.add(new Student(11, "name_wjh", " 11"));
students.add(new Student(12, "name_wjh", " "));
students.add(new Student(13, "name_wjh", " "));
Student myStudent = new Student(10, "xx", "xxx", students);
// Serialize
byte[] raw = MessagePack.pack(myStudent);
String str = Base64.encodeToString(raw, Base64.DEFAULT);
System.out.println(str);
// Deserialize
Student student = MessagePack.unpack(
Base64.decode(str, Base64.DEFAULT), Student.class);
System.out.println(student);
// Deserialize other class
Teacher teacher = MessagePack.unpack(
Base64.decode(str, Base64.DEFAULT), Teacher.class);
System.out.println(teacher);
}
}
package com.baidu.test;
import java.util.ArrayList;
import java.util.List;
import org.msgpack.MessagePack;
import android.util.Base64;
import com.github.xsonorg.XSON;
public class TestXson {
public static void main(String[] args) {
List<Student> students = new ArrayList<Student>();
students.add(new Student(11, "name_wjh", " 11"));
students.add(new Student(12, "name_wjh", " "));
students.add(new Student(13, "name_wjh", " "));
Student myStudent = new Student(10, "xx", "xxx", students);
byte[] buffer=XSON.write(myStudent);
//
String str = Base64.encodeToString(buffer, Base64.DEFAULT);
System.out.println(str);
Student student=XSON.parse(Base64.decode(str, Base64.DEFAULT));
System.out.println(student);
}
}
원본 다운로드:http://download.csdn.net/detail/earbao/8906249
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다양한 언어의 JSONJSON은 Javascript 표기법을 사용하여 데이터 구조를 레이아웃하는 데이터 형식입니다. 그러나 Javascript가 코드에서 이러한 구조를 나타낼 수 있는 유일한 언어는 아닙니다. 저는 일반적으로 '객체'{}...
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