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  • ubuntu编译安装protobuf

    测试环境:Ubuntu 16.04 LTS

    1. protobuf的release页面
      下载源码:https://github.com/protocolbuffers/protobuf/releases/download/v3.6.1/protobuf-all-3.6.1.tar.gz

    2. 安装编译依赖

      sudo apt-get install autoconf automake libtool curl make g++ unzip
      
    3. 解压、编译、安装(测试时是非root帐号,所以install时需要sudo)

      tar -xvf protobuf-all-3.6.1.tar.gz
      cd protobuf-3.6.1
      ./configure --prefix=/usr/local/protobuf
      make
      make check
      sudo make install
      
    4. 配置1:环境变量(参考链接

      vim /etc/profile
      添加两行:
      export PATH=$PATH:/usr/local/protobuf/bin/
      export PKG_CONFIG_PATH=/usr/local/protobuf/lib/pkgconfig/
      
      source /etc/profile
      
      ~/.profile中也添加上面两行
      
    5. 配置2:动态链接库

      cd /etc/ld.so.conf.d/
      sudo vi protobuf.conf
      添加一行:
      /usr/local/protobuf/lib
      
      ldconfig
      
    6. 确认版本

      $ protoc --version
      libprotoc 3.6.1
      
    7. 验证(转自
      vi message.proto

      syntax = "proto3";
      
      message Person {
          int32 id = 1;
          string name = 2;
      
          repeated Phone phone = 4;
      
          enum PhoneType {
              MOBILE = 0;
              HOME = 1;
              WORK = 2;
          }
          
          message Phone {
             string number = 1;
             PhoneType type = 2;
          }
      }
      

      protoc --java_out=./java ./proto/message.proto

    8. java代码验证

      maven引入:

       <dependency>
           <groupId>com.google.protobuf</groupId>
           <artifactId>protobuf-java-util</artifactId>
           <version>3.6.1</version>
       </dependency>
      

      gradle引入:

      compile 'com.google.protobuf:protobuf-java:3.6.1'
      

      java代码

       import com.google.protobuf.InvalidProtocolBufferException;
      
       import java.util.Arrays;
       import java.util.List;
      
       public class App {
      
           public static void main(String[] args) {
               Message.Person.Builder personBuilder = Message.Person.newBuilder();
               personBuilder.setId(12345678);
               personBuilder.setName("Admin");
               personBuilder.addPhone(Message.Person.Phone.newBuilder().setNumber("10010").setType(Message.Person.PhoneType.MOBILE));
               personBuilder.addPhone(Message.Person.Phone.newBuilder().setNumber("10086").setType(Message.Person.PhoneType.HOME));
               personBuilder.addPhone(Message.Person.Phone.newBuilder().setNumber("10000").setType(Message.Person.PhoneType.WORK));
      
               Message.Person person = personBuilder.build();
               byte[] buff = person.toByteArray();
      
               try {
                   Message.Person personOut = Message.Person.parseFrom(buff);
                   System.out.printf("Id:%d, Name:%s
      ", personOut.getId(), personOut.getName());
      
                   List<Message.Person.Phone> phoneList = personOut.getPhoneList();
      
                   for (Message.Person.Phone phone : phoneList) {
                       System.out.printf("PhoneNumber:%s (%s)
      ", phone.getNumber(), phone.getType());
                   }
      
               } catch (InvalidProtocolBufferException e) {
                   e.printStackTrace();
               }
      
               System.out.println(Arrays.toString(buff));
      
           }
      
       }
      

    其他

    1. Google Protocol Buffer 的使用和原理
    2. 序列化性能比较
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  • 原文地址:https://www.cnblogs.com/liqipeng/p/9615807.html
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