Protobuf是Google出品的一款编解码框架。
1、优点：
1）谷歌内部长期使用，成熟度高
2）跨语言，支持C++、Java、Python、JavaScript、PHP、Ruby、C#、Objective-C等
3）码流小
4）性能高
2、缺点：
1）pojo生成方式增加额外复杂度
2）灵活性差，定义数据格式后不可修改，需要重新生成pojo
3）pojo不支持json操作
综上所述：Protobuf序列化方式适用于跨语言通信、对码流大小和性能要求高、且pojo不经常变化的场景。
其它常用序列化方式，可参考我的另一篇文章：java序列化框架码流、性能对比
一、下载安装protobuf工具
https://github.com/protocolbuffers/protobuf/releases
linux、win、mac版安装略有差异，但大体思路相同，本文以mac为例
1、下载 protoc-3.12.0-osx-x86_64.zip
2、解压后，bin目录中的protoc可直接使用，也可以安装在环境变量中，为方便后续使用我添加到了本机的环境变量中
3、添加到环境变量 /etc/profile（可选）
export PROTOC_HOME=/Users/zhanghao/Desktop/develop/protoc-3.12.0-osx-x86_64
export PATH=$PATH:$PROTOC_HOME/bin
二、定义proto文件
package test;
option java_package = "com.zhanghao.test.protobuf";
option java_outer_classname = "TestProtobuf";
message testBuf {
required int32 id = 1;
required string name = 2;
required int32 age = 3;
}
更多pb语法，待更新。。。欢迎关注我的博客，便于后续交流探讨
三、根据proto文件生成java文件
protoc --java_out=./ test.proto
生成的java文件：
// Generated by the protocol buffer compiler. DO NOT EDIT!
// source: test.proto
package com.zhanghao.test.protobuf;
public final class TestProtobuf {
private TestProtobuf() {
}
public static void registerAllExtensions(
com.google.protobuf.ExtensionRegistryLite registry) {
}
public static void registerAllExtensions(
com.google.protobuf.ExtensionRegistry registry) {
registerAllExtensions(
(com.google.protobuf.ExtensionRegistryLite) registry);
}
public interface testBufOrBuilder extends
// @@protoc_insertion_point(interface_extends:test.testBuf)
com.google.protobuf.MessageOrBuilder {
/**
* <code>required int32 id = 1;</code>
* @return Whether the id field is set.
*/
boolean hasId();
/**
* <code>required int32 id = 1;</code>
* @return The id.
*/
int getId();
/**
* <code>required string name = 2;</code>
* @return Whether the name field is set.
*/
boolean hasName();
/**
* <code>required string name = 2;</code>
* @return The name.
*/
String getName();
/**
* <code>required string name = 2;</code>
* @return The bytes for name.
*/
com.google.protobuf.ByteString
getNameBytes();
/**
* <code>required int32 age = 3;</code>
* @return Whether the age field is set.
*/
boolean hasAge();
/**
* <code>required int32 age = 3;</code>
* @return The age.
*/
int getAge();
}
/**
* Protobuf type {@code test.testBuf}
*/
public static final class testBuf extends
com.google.protobuf.GeneratedMessageV3 implements
// @@protoc_insertion_point(message_implements:test.testBuf)
testBufOrBuilder {
private static final long serialVersionUID = 0L;
// Use testBuf.newBuilder() to construct.
private testBuf(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
super(builder);
}
private testBuf() {
name_ = "";
}
@Override
@SuppressWarnings({
"unused"})
protected Object newInstance(
UnusedPrivateParameter unused) {
return new testBuf();
}
@Override
public final com.google.protobuf.UnknownFieldSet
getUnknownFields() {
return this.unknownFields;
}
private testBuf(
com.google.protobuf.CodedInputStream input,
com.google.protobuf.ExtensionRegistryLite extensionRegistry)
throws com.google.protobuf.InvalidProtocolBufferException {
this();
if (extensionRegistry == null) {
throw new NullPointerException();
}
int mutable_bitField0_ = 0;
com.google.protobuf.UnknownFieldSet.Builder unknownFields =
com.google.protobuf.UnknownFieldSet.newBuilder();
try {
boolean done = false;
while (!done) {
int tag = input.readTag();
switch (tag) {
case 0:
done = true;
break;
case 8: {
bitField0_ |= 0x00000001;
id_ = input.readInt32();
break;
}
case 18: {
com.google.protobuf.ByteString bs = input.readBytes();
bitField0_ |= 0x00000002;
name_ = bs;
break;
}
case 24: {
bitField0_ |= 0x00000004;
age_ = input.readInt32();
break;
}
default: {
if (!parseUnknownField(
input, unknownFields, extensionRegistry, tag)) {
done = true;
}
break;
}
}
}
} catch (com.google.protobuf.InvalidProtocolBufferException e) {
throw e.setUnfinishedMessage(this);
} catch (java.io.IOException e) {
throw new com.google.protobuf.InvalidProtocolBufferException(
e).setUnfinishedMessage(this);
} finally {
this.unknownFields = unknownFields.build();
makeExtensionsImmutable();
}
}
public static final com.google.protobuf.Descriptors.Descriptor
getDescriptor() {
return TestProtobuf.internal_static_test_testBuf_descriptor;
}
@Override
protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
internalGetFieldAccessorTable() {
return TestProtobuf.internal_static_test_testBuf_fieldAccessorTable
.ensureFieldAccessorsInitialized(
testBuf.class, Builder.class);
}
private int bitField0_;
public static final int ID_FIELD_NUMBER = 1;
private int id_;
/**
* <code>required int32 id = 1;</code>
* @return Whether the id field is set.
*/
@Override
public boolean hasId() {
return ((bitField0_ & 0x00000001) != 0);
}
/**
* <code>required int32 id = 1;</code>
* @return The id.
*/
@Override
public int getId() {
return id_;
}
public static final int NAME_FIELD_NUMBER = 2;
private volatile Object name_;
/**
* <code>required string name = 2;</code>
* @return Whether the name field is set.
*/
@Override
public boolean hasName() {
return ((bitField0_ & 0x00000002) != 0);
}
/**
* <code>required string name = 2;</code>
* @return The name.
*/
@Override
public String getName() {
Object ref = name_;
if (ref instanceof String) {
return (String) ref;
} else {
com.google.protobuf.ByteString bs =
(com.google.protobuf.ByteString) ref;
String s = bs.toStringUtf8();
if (bs.isValidUtf8()) {
name_ = s;
}
return s;
}
}
/**
* <code>required string name = 2;</code>
* @return The bytes for name.
*/
@Override
public com.google.protobuf.ByteString
getNameBytes() {
Object ref = name_;
if (ref instanceof String) {
com.google.protobuf.ByteString b =
com.google.protobuf.ByteString.copyFromUtf8(
(String) ref);
name_ = b;
return b;
} else {
return (com.google.protobuf.ByteString) ref;
}
}
public static final int AGE_FIELD_NUMBER = 3;
private int age_;
/**
* <code>required int32 age = 3;</code>
* @return Whether the age field is set.
*/
@Override
public boolean hasAge() {
return ((bitField0_ & 0x00000004) != 0);
}
/**
* <code>required int32 age = 3;</code>
* @return The age.
*/
@Override
public int getAge() {
return age_;
}
private byte memoizedIsInitialized = -1;
@Override
public final boolean isInitialized() {
byte isInitialized = memoizedIsInitialized;
if (isInitialized == 1) return true;
if (isInitialized == 0) return false;
if (!hasId()) {
memoizedIsInitialized = 0;
return false;
}
if (!hasName()) {
memoizedIsInitialized = 0;
return false;
}
if (!hasAge()) {
memoizedIsInitialized = 0;
return false;
}
memoizedIsInitialized = 1;
return true;
}
@Override
public void writeTo(com.google.protobuf.CodedOutputStream output)
throws java.io.IOException {
if (((bitField0_ & 0x00000001) != 0)) {
output.writeInt32(1, id_);
}
if (((bitField0_ & 0x00000002) != 0)) {
com.google.protobuf.GeneratedMessageV3.writeString(output, 2, name_);
}
if (((bitField0_ & 0x00000004) != 0)) {
output.writeInt32(3, age_);
}
unknownFields.writeTo(output);
}
@Override
public int getSerializedSize() {
int size = memoizedSize;
if (size != -1) return size;
size = 0;
if (((bitField0_ & 0x00000001) != 0)) {
size += com.google.protobuf.CodedOutputStream
.computeInt32Size(1, id_);
}
if (((bitField0_ & 0x00000002) != 0)) {
size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, name_);
}
if (((bitField0_ & 0x00000004) != 0)) {
size += com.google.protobuf.CodedOutputStream
.computeInt32Size(3, age_);
}
size += unknownFields.getSerializedSize();
memoizedSize = size;
return size;
}
@Override
public boolean equals(final Object obj) {
if (obj == this) {
return true;
}
if (!(obj instanceof testBuf)) {
return super.equals(obj);
}
testBuf other = (testBuf) obj;
if (hasId() != other.hasId()) return false;
if (hasId()) {
if (getId()
!= other.getId()) return false;
}
if (hasName() != other.hasName()) return false;
if (hasName()) {
if (!getName()
.equals(other.getName())) return false;
}
if (hasAge() != other.hasAge()) return false;
if (hasAge()) {
if (getAge()
!= other.getAge()) return false;
}
if (!unknownFields.equals(other.unknownFields)) return false;
return true;
}
@Override
public int hashCode() {
if (memoizedHashCode != 0) {
return memoizedHashCode;
}
int hash = 41;
hash = (19 * hash) + getDescriptor().hashCode();
if (hasId()) {
hash = (37 * hash) + ID_FIELD_NUMBER;
hash = (53 * hash) + getId();
}
if (hasName()) {
hash = (37 * hash) + NAME_FIELD_NUMBER;
hash = (53 * hash) + getName().hashCode();
}
if (hasAge()) {
hash = (37 * hash) + AGE_FIELD_NUMBER;
hash = (53 * hash) + getAge();
}
hash = (29 * hash) + unknownFields.hashCode();
memoizedHashCode = hash;
return hash;
}
public static testBuf parseFrom(
java.nio.ByteBuffer data)
throws com.google.protobuf.InvalidProtocolBufferException {
return PARSER.parseFrom(data);
}
public static testBuf parseFrom(
java.nio.ByteBuffer data,
com.google.protobuf.ExtensionRegistryLite extensionRegistry)
throws com.google.protobuf.InvalidProtocolBufferException {
return PARSER.parseFrom(data, extensionRegistry);
}
public static testBuf parseFrom(
com.google.protobuf.ByteString data)
throws com.google.protobuf.InvalidProtocolBufferException {
return PARSER.parseFrom(data);
}
public static testBuf parseFrom(
com.google.protobuf.ByteString data,
com.google.protobuf.ExtensionRegistryLite extensionRegistry)
throws com.google.protobuf.InvalidProtocolBufferException {
return PARSER.parseFrom(data, extensionRegistry);
}
public static testBuf parseFrom(byte[] data)
throws com.google.protobuf.InvalidProtocolBufferException {
return PARSER.parseFrom(data);
}
public static testBuf parseFrom(
byte[] data,
com.google.protobuf.ExtensionRegistryLite extensionRegistry)
throws com.google.protobuf.InvalidProtocolBufferException {
return PARSER.parseFrom(data, extensionRegistry);
}
public static testBuf parseFrom(java.io.InputStream input)
throws java.io.IOException {
return com.google.protobuf.GeneratedMessageV3
.parseWithIOException(PARSER, input);
}
public static testBuf parseFrom(
java.io.InputStream input,
com.google.protobuf.ExtensionRegistryLite extensionRegistry)
throws java.io.IOException {
return com.google.protobuf.GeneratedMessageV3
.parseWithIOException(PARSER, input, extensionRegistry);
}
public static testBuf parseDelimitedFrom(java.io.InputStream input)
throws java.io.IOException {
return com.google.protobuf.GeneratedMessageV3
.parseDelimitedWithIOException(PARSER, input);
}
public static testBuf parseDelimitedFrom(
java.io.InputStream input,
com.google.protobuf.ExtensionRegistryLite extensionRegistry)
throws java.io.IOException {
return com.google.protobuf.GeneratedMessageV3
.parseDelimitedWithIOException(PARSER, input, extensionRegistry);
}
public static testBuf parseFrom(
com.google.protobuf.CodedInputStream input)
throws java.io.IOException {
return com.google.protobuf.GeneratedMessageV3
.parseWithIOException(PARSER, input);
}
public static testBuf parseFrom(
com.google.protobuf.CodedInputStream input,
com.google.protobuf.ExtensionRegistryLite extensionRegistry)
throws java.io.IOException {
return com.google.protobuf.GeneratedMessageV3
.parseWithIOException(PARSER, input, extensionRegistry);
}
@Override
public Builder newBuilderForType() {
return newBuilder(); }
public static Builder newBuilder() {
return DEFAULT_INSTANCE.toBuilder();
}
public static Builder newBuilder(testBuf prototype) {
return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
}
@Override
public Builder toBuilder() {
return this == DEFAULT_INSTANCE
? new Builder() : new Builder().mergeFrom(this);
}
@Override
protected Builder newBuilderForType(
com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
Builder builder = new Builder(parent);
return builder;
}
/**
* Protobuf type {@code test.testBuf}
*/
public static final class Builder extends
com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
// @@protoc_insertion_point(builder_implements:test.testBuf)
testBufOrBuilder {
public static final com.google.protobuf.Descriptors.Descriptor
getDescriptor() {
return TestProtobuf.internal_static_test_testBuf_descriptor;
}
@Override
protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
internalGetFieldAccessorTable() {
return TestProtobuf.internal_static_test_testBuf_fieldAccessorTable
.ensureFieldAccessorsInitialized(
testBuf.class, Builder.class);
}
// Construct using com.zhanghao.test.protobuf.TestProtobuf.testBuf.newBuilder()
private Builder() {
maybeForceBuilderInitialization();
}
private Builder(
com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
super(parent);
maybeForceBuilderInitialization();
}
private void maybeForceBuilderInitialization() {
if (com.google.protobuf.GeneratedMessageV3
.alwaysUseFieldBuilders) {
}
}
@Override
public Builder clear() {
super.clear();
id_ = 0;
bitField0_ = (bitField0_ & ~0x00000001);
name_ = "";
bitField0_ = (bitField0_ & ~0x00000002);
age_ = 0;
bitField0_ = (bitField0_ & ~0x00000004);
return this;
}
@Override
public com.google.protobuf.Descriptors.Descriptor
getDescriptorForType() {
return TestProtobuf.internal_static_test_testBuf_descriptor;
}
@Override
public testBuf getDefaultInstanceForType() {
return testBuf.getDefaultInstance();
}
@Override
public testBuf build() {
testBuf result = buildPartial();
if (!result.isInitialized()) {
throw newUninitializedMessageException(result);
}
return result;
}
@Override
public testBuf buildPartial() {
testBuf result = new testBuf(this);
int from_bitField0_ = bitField0_;
int to_bitField0_ = 0;
if (((from_bitField0_ & 0x00000001) != 0)) {
result.id_ = id_;
to_bitField0_ |= 0x00000001;
}
if (((from_bitField0_ & 0x00000002) != 0)) {
to_bitField0_ |= 0x00000002;
}
result.name_ = name_;
if (((from_bitField0_ & 0x00000004) != 0)) {
result.age_ = age_;
to_bitField0_ |= 0x00000004;
}
result.bitField0_ = to_bitField0_;
onBuilt();
return result;
}
@Override
public Builder clone() {
return super.clone();
}
@Override
public Builder setField(
com.google.protobuf.Descriptors.FieldDescriptor field,
Object value) {
return super.setField(field, value);
}
@Override
public Builder clearField(
com.google.protobuf.Descriptors.FieldDescriptor field) {
return super.clearField(field);
}
@Override
public Builder clearOneof(
com.google.protobuf.Descriptors.OneofDescriptor oneof) {
return super.clearOneof(oneof);
}
@Override
public Builder setRepeatedField(
com.google.protobuf.Descriptors.FieldDescriptor field,
int index, Object value) {
return super.setRepeatedField(field, index, value);
}
@Override
public Builder addRepeatedField(
com.google.protobuf.Descriptors.FieldDescriptor field,
Object value) {
return super.addRepeatedField(field, value);
}
@Override
public Builder mergeFrom(com.google.protobuf.Message other) {
if (other instanceof testBuf) {
return mergeFrom((testBuf)other);
} else {
super.mergeFrom(other);
return this;
}
}
public Builder mergeFrom(testBuf other) {
if (other == testBuf.getDefaultInstance()) return this;
if (other.hasId()) {
setId(other.getId());
}
if (other.hasName()) {
bitField0_ |= 0x00000002;
name_ = other.name_;
onChanged();
}
if (other.hasAge()) {
setAge(other.getAge());
}
this.mergeUnknownFields(other.unknownFields);
onChanged();
return this;
}
@Override
public final boolean isInitialized() {
if (!hasId()) {
return false;
}
if (!hasName()) {
return false;
}
if (!hasAge()) {
return false;
}
return true;
}
@Override
public Builder mergeFrom(
com.google.protobuf.CodedInputStream input,
com.google.protobuf.ExtensionRegistryLite extensionRegistry)
throws java.io.IOException {
testBuf parsedMessage = null;
try {
parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
} catch (com.google.protobuf.InvalidProtocolBufferException e) {
parsedMessage = (testBuf) e.getUnfinishedMessage();
throw e.unwrapIOException();
} finally {
if (parsedMessage != null) {
mergeFrom(parsedMessage);
}
}
return this;
}
private int bitField0_;
private int id_ ;
/**
* <code>required int32 id = 1;</code>
* @return Whether the id field is set.
*/
@Override
public boolean hasId() {
return ((bitField0_ & 0x00000001) != 0);
}
/**
* <code>required int32 id = 1;</code>
* @return The id.
*/
@Override
public int getId() {
return id_;
}
/**
* <code>required int32 id = 1;</code>
* @param value The id to set.
* @return This builder for chaining.
*/
public Builder setId(int value) {
bitField0_ |= 0x00000001;
id_ = value;
onChanged();
return this;
}
/**
* <code>required int32 id = 1;</code>
* @return This builder for chaining.
*/
public Builder clearId() {
bitField0_ = (bitField0_ & ~0x00000001);
id_ = 0;
onChanged();
return this;
}
private Object name_ = "";
/**
* <code>required string name = 2;</code>
* @return Whether the name field is set.
*/
public boolean hasName() {
return ((bitField0_ & 0x00000002) != 0);
}
/**
* <code>required string name = 2;</code>
* @return The name.
*/
public String getName() {
Object ref = name_;
if (!(ref instanceof String)) {
com.google.protobuf.ByteString bs =
(com.google.protobuf.ByteString) ref;
String s = bs.toStringUtf8();
if (bs.isValidUtf8()) {
name_ = s;
}
return s;
} else {
return (String) ref;
}
}
/**
* <code>required string name = 2;</code>
* @return The bytes for name.
*/
public com.google.protobuf.ByteString
getNameBytes() {
Object ref = name_;
if (ref instanceof String) {
com.google.protobuf.ByteString b =
com.google.protobuf.ByteString.copyFromUtf8(
(String) ref);
name_ = b;
return b;
} else {
return (com.google.protobuf.ByteString) ref;
}
}
/**
* <code>required string name = 2;</code>
* @param value The name to set.
* @return This builder for chaining.
*/
public Builder setName(
String value) {
if (value == null) {
throw new NullPointerException();
}
bitField0_ |= 0x00000002;
name_ = value;
onChanged();
return this;
}
/**
* <code>required string name = 2;</code>
* @return This builder for chaining.
*/
public Builder clearName() {
bitField0_ = (bitField0_ & ~0x00000002);
name_ = getDefaultInstance().getName();
onChanged();
return this;
}
/**
* <code>required string name = 2;</code>
* @param value The bytes for name to set.
* @return This builder for chaining.
*/
public Builder setNameBytes(
com.google.protobuf.ByteString value) {
if (value == null) {
throw new NullPointerException();
}
bitField0_ |= 0x00000002;
name_ = value;
onChanged();
return this;
}
private int age_ ;
/**
* <code>required int32 age = 3;</code>
* @return Whether the age field is set.
*/
@Override
public boolean hasAge() {
return ((bitField0_ & 0x00000004) != 0);
}
/**
* <code>required int32 age = 3;</code>
* @return The age.
*/
@Override
public int getAge() {
return age_;
}
/**
* <code>required int32 age = 3;</code>
* @param value The age to set.
* @return This builder for chaining.
*/
public Builder setAge(int value) {
bitField0_ |= 0x00000004;
age_ = value;
onChanged();
return this;
}
/**
* <code>required int32 age = 3;</code>
* @return This builder for chaining.
*/
public Builder clearAge() {
bitField0_ = (bitField0_ & ~0x00000004);
age_ = 0;
onChanged();
return this;
}
@Override
public final Builder setUnknownFields(
final com.google.protobuf.UnknownFieldSet unknownFields) {
return super.setUnknownFields(unknownFields);
}
@Override
public final Builder mergeUnknownFields(
final com.google.protobuf.UnknownFieldSet unknownFields) {
return super.mergeUnknownFields(unknownFields);
}
// @@protoc_insertion_point(builder_scope:test.testBuf)
}
// @@protoc_insertion_point(class_scope:test.testBuf)
private static final testBuf DEFAULT_INSTANCE;
static {
DEFAULT_INSTANCE = new testBuf();
}
public static testBuf getDefaultInstance() {
return DEFAULT_INSTANCE;
}
@Deprecated public static final com.google.protobuf.Parser<testBuf>
PARSER = new com.google.protobuf.AbstractParser<testBuf>() {
@Override
public testBuf parsePartialFrom(
com.google.protobuf.CodedInputStream input,
com.google.protobuf.ExtensionRegistryLite extensionRegistry)
throws com.google.protobuf.InvalidProtocolBufferException {
return new testBuf(input, extensionRegistry);
}
};
public static com.google.protobuf.Parser<testBuf> parser() {
return PARSER;
}
@Override
public com.google.protobuf.Parser<testBuf> getParserForType() {
return PARSER;
}
@Override
public testBuf getDefaultInstanceForType() {
return DEFAULT_INSTANCE;
}
}
private static final com.google.protobuf.Descriptors.Descriptor
internal_static_test_testBuf_descriptor;
private static final
com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
internal_static_test_testBuf_fieldAccessorTable;
public static com.google.protobuf.Descriptors.FileDescriptor
getDescriptor() {
return descriptor;
}
private static com.google.protobuf.Descriptors.FileDescriptor
descriptor;
static {
String[] descriptorData = {
"\n\ntest.proto\022\004test\"0\n\007testBuf\022\n\n\002id\030\001 \002(" +
"\005\022\014\n\004name\030\002 \002(\t\022\013\n\003age\030\003 \002(\005B*\n\032com.zhan" +
"ghao.test.protobufB\014TestProtobuf"
};
descriptor = com.google.protobuf.Descriptors.FileDescriptor
.internalBuildGeneratedFileFrom(descriptorData,
new com.google.protobuf.Descriptors.FileDescriptor[] {
});
internal_static_test_testBuf_descriptor =
getDescriptor().getMessageTypes().get(0);
internal_static_test_testBuf_fieldAccessorTable = new
com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
internal_static_test_testBuf_descriptor,
new String[] {
"Id", "Name", "Age", });
}
// @@protoc_insertion_point(outer_class_scope)
}
说明：
1）protoc：已添加到环境变量中
2）./：表示生成的java文件放到当前目录（也可以直接指定到工程目录中）
3）test.proto：是我定义的proto文件的名称
注：java文件放在当前目录可以手动复制到相应工程目录中
四、使用Java进行编解码
1、依赖：注意版本一致或向下兼容
<!--protobuf-->
<dependency>
<groupId>com.google.protobuf</groupId>
<artifactId>protobuf-java</artifactId>
<version>3.12.0</version>
</dependency>
2、编解码序列化
package com.zhanghao.test.protobuf;
import com.google.protobuf.InvalidProtocolBufferException;
public class TestMain {
public static void main(String[] args) {
TestProtobuf.testBuf.Builder builder = TestProtobuf.testBuf.newBuilder();
builder.setId(1).setName("猴子哥哥").setAge(18);
TestProtobuf.testBuf testBuf = builder.build();
byte[] bytes = testBuf.toByteArray();
System.out.println("serialize pb size=" + bytes.length);
try {
TestProtobuf.testBuf pojo = TestProtobuf.testBuf.parseFrom(bytes);
System.out.println("unSerialize pb data:id=" + pojo.getId() + ",name=" + pojo.getName() + ",age=" + pojo.getAge());
} catch (InvalidProtocolBufferException e) {
e.printStackTrace();
}
}
}
3、运行结果
注：编码和解码可以是不同语言来操作
更多序列化工具请参考：https://blog.csdn.net/qq_21033663/article/details/105747361