• Nginx 的 Echo 模块 —— echo-nginx-module(转)


    Nginx 有个 echo 模块可以用来输出一些简单的信息,例如:

    1
    2
    3
    4
    5
    6
    7
    8
    9
    10
    11
    12
    13
    14
    15
    16
    17
    18
    19
    20
    21
    22
    23
    24
    25
    26
    27
    28
    29
    30
    31
    32
    33
    34
    35
    36
    37
    38
    39
    40
    41
    42
    43
    44
    45
    46
    47
    48
    49
    50
    51
    52
    53
    54
    55
    56
    57
    58
    59
    60
    61
    62
    63
    64
    65
    66
    67
    68
    69
    70
    71
    72
    73
    74
    75
    76
    77
    78
    79
    80
    81
    82
    83
    84
    85
    86
    87
    88
    89
    90
    91
    92
    93
    94
    95
    96
    97
    98
    99
    100
    101
    102
    103
    104
    105
    106
    107
    108
    109
    110
    111
    112
    113
    114
    115
    116
    117
    118
    119
    120
    121
    122
    123
    124
    125
    126
    127
    128
    129
    130
    131
    132
    133
    134
    135
    136
    137
    138
    139
    140
    141
    142
    143
    144
    145
    146
    147
    148
    149
    150
    151
    152
    153
    154
    location /hello {
      echo "hello, world!";
    }
     
    location /hello {
      echo -n "hello, "
      echo "world!";
    }
     
    location /timed_hello {
      echo_reset_timer;
      echo hello world;
      echo "'hello world' takes about $echo_timer_elapsed sec.";
      echo hiya igor;
      echo "'hiya igor' takes about $echo_timer_elapsed sec.";
    }
     
    location /echo_with_sleep {
      echo hello;
      echo_flush;  # ensure the client can see previous output immediately
      echo_sleep   2.5;  # in sec
      echo world;
    }
     
    # in the following example, accessing /echo yields
    #   hello
    #   world
    #   blah
    #   hiya
    #   igor
    location /echo {
        echo_before_body hello;
        echo_before_body world;
        proxy_pass $scheme://127.0.0.1:$server_port$request_uri/more;
        echo_after_body hiya;
        echo_after_body igor;
    }
    location /echo/more {
        echo blah;
    }
     
    # the output of /main might be
    #   hello
    #   world
    #   took 0.000 sec for total.
    # and the whole request would take about 2 sec to complete.
    location /main {
        echo_reset_timer;
     
        # subrequests in parallel
        echo_location_async /sub1;
        echo_location_async /sub2;
     
        echo "took $echo_timer_elapsed sec for total.";
    }
    location /sub1 {
        echo_sleep 2;
        echo hello;
    }
    location /sub2 {
        echo_sleep 1;
        echo world;
    }
     
    # the output of /main might be
    #   hello
    #   world
    #   took 3.003 sec for total.
    # and the whole request would take about 3 sec to complete.
    location /main {
        echo_reset_timer;
     
        # subrequests in series (chained by CPS)
        echo_location /sub1;
        echo_location /sub2;
     
        echo "took $echo_timer_elapsed sec for total.";
    }
    location /sub1 {
        echo_sleep 2;
        echo hello;
    }
    location /sub2 {
        echo_sleep 1;
        echo world;
    }
     
    # Accessing /dup gives
    #   ------ END ------
    location /dup {
      echo_duplicate 3 "--";
      echo_duplicate 1 " END ";
      echo_duplicate 3 "--";
      echo;
    }
     
    # /bighello will generate 1000,000,000 hello's.
    location /bighello {
      echo_duplicate 1000_000_000 'hello';
    }
     
    # echo back the client request
    location /echoback {
      echo_duplicate 1 $echo_client_request_headers;
      echo " ";
     
      echo_read_request_body;
     
      echo_request_body;
    }
     
    # GET /multi will yields
    #   querystring: foo=Foo
    #   method: POST
    #   body: hi
    #   content length: 2
    #   ///
    #   querystring: bar=Bar
    #   method: PUT
    #   body: hello
    #   content length: 5
    #   ///
    location /multi {
        echo_subrequest_async POST '/sub' -q 'foo=Foo' -b 'hi';
        echo_subrequest_async PUT '/sub' -q 'bar=Bar' -b 'hello';
    }
    location /sub {
        echo "querystring: $query_string";
        echo "method: $echo_request_method";
        echo "body: $echo_request_body";
        echo "content length: $http_content_length";
        echo '///';
    }
     
    # GET /merge?/foo.js&/bar/blah.js&/yui/baz.js will merge the .js resources together
    location /merge {
        default_type 'text/javascript';
        echo_foreach_split '&' $query_string;
            echo "/* JS File $echo_it */";
            echo_location_async $echo_it;
            echo;
        echo_end;
    }
     
    # accessing /if?val=abc yields the "hit" output
    # while /if?val=bcd yields "miss":
    location ^~ /if {
        set $res miss;
        if ($arg_val ~* '^a') {
            set $res hit;
            echo $res;
        }
        echo $res;
    }

    这个模块不包含在 Nginx 源码中,安装方法:

    1. 首先下载模块源码:https://github.com/agentzh/echo-nginx-module/tags
    2. 解压到某个路径,假设为 /path/to/echo-nginx-module
    3. 使用下面命令编译并安装 Nginx

    1
    2
    3
    4
    5
    6
    7
    8
    9
    10
    $ wget 'http://sysoev.ru/nginx/nginx-1.0.11.tar.gz'
    $ tar -xzvf nginx-1.0.11.tar.gz
    $ cd nginx-1.0.11/
     
    # Here we assume you would install you nginx under /opt/nginx/.
    $ ./configure --prefix=/opt/nginx
    --add-module=/path/to/echo-nginx-module
     
    $ make -j2
    $ make install

    试试看吧,该模块是国人 @章亦春 开发的。

    http://www.oschina.net/question/12_45735?fromerr=jyurMByB

  • 相关阅读:
    selinux 设置的彻底理解 并要 熟练经常的使用
    关于linux下自定义的 alias文件和自定义函数库的通用写法(只适合自己的)
    linux下关于mysql的命令的用法
    彻底地/ 终于地, 解决 关于apache 权限的问题了:: 修改 DocumentRoot后的 403错误: have no permission to access / on this server
    php的内核组成模块和运行原理
    彻底了解 suid, sgid ,sticky权限
    php编程疑难解决-1
    再次安装fedora23的一些遗留问题的解决
    word如何替换行首?
    php高级开发参考地址
  • 原文地址:https://www.cnblogs.com/softidea/p/5679743.html
Copyright © 2020-2023  润新知