Protocol Buffers - Google's data interchange format (grpc依赖)
https://developers.google.com/protocol-buffers/
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51 lines
1.9 KiB
51 lines
1.9 KiB
7 years ago
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# Protocol Buffers - Google's data interchange format
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Copyright 2008 Google Inc.
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https://developers.google.com/protocol-buffers/
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## Use Protobuf Java Lite Runtime
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Protobuf Java Lite runtime is separated from the main Java runtime because
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it's designed/implemented with different constraints. In particular, Java
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Lite runtime has a much smaller code size which makes it more suitable to
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be used on Android.
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To use Java Lite runtime, you need to install protoc and the protoc plugin for
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Java Lite runtime. You can obtain protoc following the instructions in the
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toplevel [README.md](../README.md) file. For the protoc plugin, you can
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download it from maven:
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https://repo1.maven.org/maven2/com/google/protobuf/protoc-gen-javalite/
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Choose the version that works on your platform (e.g., on windows you can
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download `protoc-gen-javalite-3.0.0-windows-x86_32.exe`), rename it to
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protoc-gen-javalite (or protoc-gen-javalite.exe on windows) and place it
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in a directory where it can be find in PATH.
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Once you have the protoc and protoc plugin, you can generate Java Lite code
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for your .proto files:
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$ protoc --javalite_out=${OUTPUT_DIR} path/to/your/proto/file
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Include the generated Java files in your project and add a dependency on the
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protobuf Java runtime. If you are using Maven, use the following:
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```xml
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<dependency>
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<groupId>com.google.protobuf</groupId>
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<artifactId>protobuf-lite</artifactId>
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<version>3.0.1</version>
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</dependency>
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```
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Make sure the version number of the runtime matches (or is newer than) the
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version number of the protoc plugin. The version number of the protoc doesn't
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matter and any version >= 3.0.0 should work.
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### Use Protobuf Java Lite Runtime with Bazel
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Bazel has native build rules to work with protobuf. For Java Lite runtime,
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you can use the `java_lite_proto_library` rule. Check out [our build files
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examples](../examples/BUILD) to learn how to use it.
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