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Serialization and Deserialization in Java

Popularity:149 ℃/2024-11-09 09:52:29

Serializationcap (a poem)Deserializationare two basic operations used in computer science for data storage and transmission.

  1. serialize
    • Serialization is the process of converting the state information of an object into a form that can be stored or transmitted. Simply put, it is the conversion of an object into a sequence of bytes (e.g., formats such as JSON, XML, etc.).
    • Purpose: To enable objects to be transferred over a network or stored in a file or database.
    • Example: Convert a Java object into a JSON string to be sent over the network to another system.
  2. deserialization
    • Deserialization is the inverse process of serialization, i.e., recovering the state information of an object from the stored or transmitted form and reconstructing the object.
    • Purpose: To recover the original object from the data received from a file, database or network.
    • Example: Parses data from a JSON string and creates a new Java object based on that data.
      Application Scenarios for Serialization and Deserialization
  • network transmission: In network communication, where objects need to be transferred between different services, serialization can convert the object into a stream of bytes, send it over the network, and the receiver can then restore it to an object by deserialization.
  • data storage: Serialize an object and store it in a file or database for subsequent reading and use.
  • distributed system: In distributed systems, objects may need to be passed between different nodes, and serialization and deserialization are key techniques for achieving this.
  • Remote Method Call (RPC): In RPC, objects as method parameters or return values need to be passed between different address spaces and also need to be serialized and deserialized.
    take note of: When serializing and deserializing, it is necessary to ensure that both parties use the same format and rules, otherwise it may result in incorrect or unparsable data. In addition, the serialization and deserialization process may also involve security issues, such as serialization vulnerabilities, which require special attention.