option java_outer_classname = \"大众PersonEntity\"大众;//天生的数据访问类的类名
message Person {
required int32 id = 1;//同上

required string name = 2;//必须字段,在后面的利用中必须为该段设置值
optional string email = 3;//可选字段,在后面的利用中可以自由决定是否为该字段设置值
}
利用idea编译成java解析文件:详见另一篇文章
引入依赖:
<dependency>
<groupId>com.google.protobuf</groupId>
<artifactId>protobuf-java</artifactId>
<version>2.5.0</version>
</dependency>
<dependency>
<groupId>com.googlecode.protobuf-java-format</groupId>
<artifactId>protobuf-java-format</artifactId>
<version>1.2</version>
</dependency>
PB转换为JSON:
PersonEntity.Person.Builder builder = PersonEntity.Person.newBuilder();
builder.setId(1);
builder.setName(\"大众极客慧\"大众);
builder.setEmail(\公众jikeh@.com\"大众);
PersonEntity.Person person = builder.build();
System.out.println(\"大众原pb文件: \公众+person.toString());
System.out.println(\"大众原pb文件转换为JSON文件: \"大众+JsonFormat.printToString(person));
JSON转换为PB:
String jsonStr = \"大众{\"大众id\"大众: 1,\"大众name\公众: \公众极客慧\"大众,\"大众email\公众: \"大众jikeh@.com\"大众}\公众;
PersonEntity.Person.Builder builderPerson = PersonEntity.Person.newBuilder();
JsonFormat.merge(jsonStr, builderPerson);
PersonEntity.Person person2 = builderPerson.build();
System.out.println(\"大众JSON文件转换为PB: \"大众+person2.toString());