ros定义srv服务

    xiaoxiao2021-03-25  68

    在beginner_tutorials,新建srv服务目录,新建AddTwoInts.srv文件

    $ roscd beginner_tutorials $ mkdir srv $ cd srv $ touch AddTwoInts.srv $ rosed beginner_tutorials AddTwoInts.srv

    srv文件分为请求和响应两部分,由’- - -‘分隔。手工输入代码:

    int64 A int64 B --- int64 Sum

    打开文件rosed beginner_tutorials package.xml,增加依赖,

    <build_depend>message_generation</build_depend> <run_depend>message_runtime</run_depend>

    打开文件rosed beginner_tutorials CMakeLists.txt,增加依赖,

    find_package(catkin REQUIRED COMPONENTS roscpp rospy std_msgs message_generation )

    在CMakeLists.txt文件,增加服务文件,取消#,并修改为

    add_service_files( FILES AddTwoInts.srv )

    在CMakeLists.txt文件,增加消息生成包,取消#,并修改为

    generate_messages( DEPENDENCIES std_msgs )

    编译代码

    $ cd ~/catkin_ws $ catkin_make

    检查服务命令:

    $ rossrv show beginner_tutorials/AddTwoInts

    效果:

    int64 a int64 b --- int64 sum
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