java 常用序列化和反序列化框架使用demo

package com.baidu.test;import java.io.Serializable;import java.util.List;import org.msgpack.annotation.MessagePackMessage;//Msgpack需要注释@MessagePackMessagepublic 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;}@Overridepublic 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;@MessagePackMessagepublic 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;}@Overridepublic 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;/* 一个JSON库涉及的最基本功能就是序列化和反序列化。Fastjson支持java bean的直接序列化。 使用com.alibaba.fastjson.JSON这个类进行序列化和反序列化。 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", "男");// map集合HashMap<String, Object> temp = new HashMap<String, Object>();temp.put("name", "xiaohong");temp.put("age", "23");map.put("girlInfo", temp);// list集合List<String> list = new ArrayList<String>();list.add("爬山");list.add("骑车");list.add("旅游");map.put("hobby", list);/* * JSON 序列化，默认序列化出的JSON字符串中键值对是使用双引号，如果需要单引号的JSON字符串， [eg:String * jsonString = * JSON.toJSONString(map,SerializerFeature.UseSingleQuotes);] * fastjson序列化时可以选择的SerializerFeature有十几个属性，你可以按照自己的需要去选择使用。 */String jsonString = JSON.toJSONString(map);System.out.println("JSON=" + jsonString);// 反序列化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();}// 日期格式化public static void test003() {Date date = new Date();// 输出毫秒值System.out.println(JSON.toJSONString(date));// 默认格式为yyyy-MM-dd HH:mm:ssSystem.out.println(JSON.toJSONString(date,SerializerFeature.WriteDateUseDateFormat));// 根据自定义格式输出日期System.out.println(JSON.toJSONStringWithDateFormat(date, "yyyy-MM-dd",SerializerFeature.WriteDateUseDateFormat));}/** 泛型的反序列化 */public static void test004() {String json = "{\"user\":{\"city\":\"来自北京\",\"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", "北京"));lovers.add(new Student(13, "name_wjh", "上海"));Student student = new Student(1, "name_xx", "南宁", lovers);// System.out.println(JSON.toJSONString(student,// SerializerFeature.QuoteFieldNames));// 序列化String result = JSON.toJSONString(student);System.out.println(result);// 反序列化Student student2 = JSON.parseObject(result, Student.class);System.out.println(student2);// fastjson 强大，可以直接反序列化为其他类,只要属性名对应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;/* 注意： 1. 在Hessian远程调用方法中，客户端中的接口类必须和服务器中的接口类一样，方法名称也一样 2. 在接口类中，不要写重构的方法，Hessian不能识别重构的方法。 3. 方法参数中，如果有自定义实体对象entity，则有以下几注意点： a  entity的package名必须同服务器上的package，否则会在服务端上报找不到此类 b  entity必须是可序列化的，如果是组合对象，则可序列化应该可递归下去，除非不需要组合 4. 方法返回值中，如果有自定义对象，同2，如果是集合对象，则为List(lists and arrays) & map(maps and dictionaries) 5. Hessian 不支持文件传输，如需要文件传输，则传递数据流实现（下一文档说明） */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", "北京11"));students.add(new Student(12, "name_wjh", "北京"));students.add(new Student(13, "name_wjh", "上海"));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);// 不能转换为其他类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/19127003public class TestJackson {public static void main(String[] args) throws Exception {List<Student> students = new ArrayList<Student>();students.add(new Student(11, "name_wjh", "北京11"));students.add(new Student(12, "name_wjh", "北京"));students.add(new Student(13, "name_wjh", "上海"));Student myStudent = new Student(10, "xx", "xxx", students);ObjectMapper mapper = new ObjectMapper();// convert user object to json string, and save to a filemapper.writeValue(new File("user.json"), myStudent);// read from file, convert it to user classStudent 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", "北京11"));students.add(new Student(12, "name_wjh", "北京"));students.add(new Student(13, "name_wjh", "上海"));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); // 指定JsonRpcRequest的request字段的内部类型          jsonConfig.setClassMap(classMap);            */        Student student = (Student) JSONObject.toBean(jsonObject, Student.class);                 System.out.println(student);         //不好用        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());// 注册类Registration registration = kryo.register(Student.class);long time = System.currentTimeMillis();for (int i = 0; i < 2; i++) {// 序列化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", "北京11"));students.add(new Student(12, "name_wjh", "北京"));students.add(new Student(13, "name_wjh", "上海"));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);// 反序列化Input input = new Input(Base64.decode(str, Base64.DEFAULT));Student s = (Student) kryo.readObject(input, registration.getType());System.out.println(s);input.close();// 反序列化为其他类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", "北京11"));students.add(new Student(12, "name_wjh", "北京"));students.add(new Student(13, "name_wjh", "上海"));Student myStudent = new Student(10, "xx", "xxx", students);// Serializebyte[] raw = MessagePack.pack(myStudent);String str = Base64.encodeToString(raw, Base64.DEFAULT);System.out.println(str);// DeserializeStudent student = MessagePack.unpack(Base64.decode(str, Base64.DEFAULT), Student.class);System.out.println(student);// Deserialize other classTeacher 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", "北京11"));students.add(new Student(12, "name_wjh", "北京"));students.add(new Student(13, "name_wjh", "上海"));Student myStudent = new Student(10, "xx", "xxx", students);byte[] buffer=XSON.write(myStudent);//失败String str = Base64.encodeToString(buffer, Base64.DEFAULT);System.out.println(str);Student student=XSON.parse(Base64.decode(str, Base64.DEFAULT));System.out.println(student);}}

源码下载：http://download.csdn.net/detail/earbao/8906249