zoukankan      html  css  js  c++  java
  • 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:
    Sqlserver的Transaction做Rollback的时候要小心(转载)
    注意Sqlserver中使用with(nolock)后实际上还是会加架构锁,只是不对要查询的数据加S锁而已(转载)
    为什么Sql Server的查询有时候第一次执行很慢,第二次,第三次执行就变快了
    Sql Server 中如果使用TransactionScope开启一个分布式事务,使用该事务两个并发的连接会互相死锁吗
    Css中路径data:image/png;base64的用法详解 (转载)
    android获取mp4视频文件总时长和视频宽高<转>
    “Avoid non-default constructors in fragments: use a default constructor plus Fragment#setArguments(Bundle)instead”
    android 除法运算保留小数点
    Directshow 采集音视频数据H264+AAC+rtmp效果还不错
    VS2010中将CString转换为const char*
  • 原文地址:https://www.cnblogs.com/softidea/p/5679743.html
Copyright © 2011-2022 走看看