kratos连接mysql_kratos微服务框架学习笔记一(kratos-demo)

下载,我是windows系统在path里面添加下bin目录环境变量即可。

protoc

Usage: protoc [OPTION] PROTO_FILES

Parse PROTO_FILES and generate output based on the options given:

-IPATH, --proto_path=PATH Specify the directory in which to search for

imports. May be specified multiple times;

directories will be searched in order. If not

given, the current working directory is used.

If not found in any of the these directories,

the --descriptor_set_in descriptors will be

checked for required proto file.

--version Show version info and exit.

-h, --help Show this text and exit.

--encode=MESSAGE_TYPE Read a text-format message of the given type

from standard input and write it in binary

to standard output. The message type must

be defined in PROTO_FILES or their imports.

--decode=MESSAGE_TYPE Read a binary message of the given type from

standard input and write it in text format

to standard output. The message type must

be defined in PROTO_FILES or their imports.

--decode_raw Read an arbitrary protocol message from

standard input and write the raw tag/value

pairs in text format to standard output. No

PROTO_FILES should be given when using this

flag.

--descriptor_set_in=FILES Specifies a delimited list of FILES

each containing a FileDescriptorSet (a

protocol buffer defined in descriptor.proto).

The FileDescriptor for each of the PROTO_FILES

provided will be loaded from these

FileDescriptorSets. If a FileDescriptor

appears multiple times, the first occurrence

will be used.

-oFILE, Writes a FileDescriptorSet (a protocol buffer,

--descriptor_set_out=FILE defined in descriptor.proto) containing all of

the input files to FILE.

--include_imports When using --descriptor_set_out, also include

all dependencies of the input files in the

set, so that the set is self-contained.

--include_source_info When using --descriptor_set_out, do not strip

SourceCodeInfo from the FileDescriptorProto.

This results in vastly larger descriptors that

include information about the original

location of each decl in the source file as

well as surrounding comments.

--dependency_out=FILE Write a dependency output file in the format

expected by make. This writes the transitive

set of input file paths to FILE

--error_format=FORMAT Set the format in which to print errors.

FORMAT may be 'gcc' (the default) or 'msvs'

(Microsoft Visual Studio format).

--print_free_field_numbers Print the free field numbers of the messages

defined in the given proto files. Groups share

the same field number space with the parent

message. Extension ranges are counted as

occupied fields numbers.

--plugin=EXECUTABLE Specifies a plugin executable to use.

Normally, protoc searches the PATH for

plugins, but you may specify additional

executables not in the path using this flag.

Additionally, EXECUTABLE may be of the form

NAME=PATH, in which case the given plugin name

is mapped to the given executable even if

the executable's own name differs.

--cpp_out=OUT_DIR Generate C++ header and source.

--csharp_out=OUT_DIR Generate C# source file.

--java_out=OUT_DIR Generate Java source file.

--js_out=OUT_DIR Generate JavaScript source.

--objc_out=OUT_DIR Generate Objective C header and source.

--php_out=OUT_DIR Generate PHP source file.

--python_out=OUT_DIR Generate Python source file.

--ruby_out=OUT_DIR Generate Ruby source file.

@ Read options and filenames from file. If a

relative file path is specified, the file

will be searched in the working directory.

The --proto_path option will not affect how

this argument file is searched. Content of

the file will be expanded in the position of

@ as in the argument list. Note

that shell expansion is not applied to the

content of the file (i.e., you cannot use

quotes, wildcards, escapes, commands, etc.).

Each line corresponds to a single argument,

even if it contains spaces.

确保protoc能够执行,删除demo目录重新创建:

这次能够运行成功了

d3bc3bbc07ef60b86e5dac128a03018d.png

先试试文档给的路径:

8649a089b838dca6a0c49c8c5eaab3d6.png

不行, 看看源码:

blademaster应该就是对gin框架的裁剪

看看demo服务做了什么,

// New new a bm server.

func New(s pb.DemoServer) (engine *bm.Engine, err error) {

var (

hc struct {

Server *bm.ServerConfig

}

)

if err = paladin.Get("http.toml").UnmarshalTOML(&hc); err != nil {

if err != paladin.ErrNotExist {

return

}

err = nil

}

svc = s

engine = bm.DefaultServer(hc.Server)

pb.RegisterDemoBMServer(engine, s)

initRouter(engine)

err = engine.Start()

return

}

func initRouter(e *bm.Engine) {

e.Ping(ping)

g := e.Group("/abc")

{

g.GET("/start", howToStart)

}

}

添加了个/abc组,注册了/start 路由.

// Group creates a new router group. You should add all the routes that have common middlwares or the same path prefix.

// For example, all the routes that use a common middlware for authorization could be grouped.

func (group *RouterGroup) Group(relativePath string, handlers ...HandlerFunc) *RouterGroup {

return &RouterGroup{

Handlers: group.combineHandlers(handlers),

basePath: group.calculateAbsolutePath(relativePath),

engine: group.engine,

root: false,

}

}

看介绍,大概意思是创建给使用相同中间件和路径前缀的路由使用的路由组。

试试路径

/abc/start成功了:

3c9422856f7dd3a7f66a37850c9b8435.png


版权声明:本文为weixin_35349608原创文章,遵循CC 4.0 BY-SA版权协议,转载请附上原文出处链接和本声明。