Nginx安装Nginx-echo模块

Nginx-echo可以在Nginx中用来输出一些信息，是在测试排错过程中一个比较好的工具。它也可以做到把来自不同链接地址的信息进行一个汇总输出。总之能用起来可以给开发人员带来挺大帮助的。下面看看我们如何去安装使用它。

1.下载Nginx-echo

cd /usr/local/nginx-1.12.2/ wget https://github.com/openresty/echo-nginx-module/archive/v0.60.tar.gz

2.解压下载来的文件

tar zxvf v0.60.tar.gz

3.查看一下之前安装的模块

/usr/local/nginx/sbin/nginx -V

4.进入以前下载过来的Nginx安装包目录下配置

cd /usr/local/nginx-1.12.2/ ./configure --add-module=/usr/local/nginx-1.12.2/echo-nginx-module-0.61 --add-module=/usr/local/nginx-1.12.2/ngx_image_thumb-master

5.编译安装，如果是升级可以使用make upgrade

make && make install

6.使用echo，以下内容为官方的案例，加了一些自己的理解

#简单输出，看别人日志地址是/hello，我这里测试后不知道为什么一直访问不到，所以加上/ location /hello/ {     echo "hello, world!"; }

#$echo_timer_elapsed计时，通过echo_reset_timer执行后开始计算 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."; }

#echo_sleep可以等待2.5s后再输出 location /echo_with_sleep/ {     echo hello;     echo_flush;  # ensure the client can see previous output immediately     echo_sleep  2.5;  # in sec     echo world; }

#在proxy_pass这个地址获得的源代码前后加上指定的内容 location /echo/ {       echo_before_body hello;       echo_before_body world;       proxy_pass $scheme://127.0.0.1:$server_port$request_uri/more;       echo_after_body hiya;       echo_after_body igor; } #echo_location_async可以异步去访问其他地址，不影响当前函数执行，$echo_timer_elapsed最后输出的值为0 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; }

#同步执行 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; }

#echo_duplicate 3 "--" 意思是重复3次输出"--" location /dup/ {     echo_duplicate 3 "--";     echo_duplicate 1 " END ";     echo_duplicate 3 "--";     echo; }

#输出客户端请求的信息 location /echoback/ {     echo_duplicate 1 $echo_client_request_headers;     echo "\r";     echo_read_request_body;     echo_request_body; }

#输出querystring、method、body、content等信息 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 '///'; }

#可以将多个JS合并到一个URL地址输出 # 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; }

#如果地址为/if/?val=abcd，则输出hit #参数名为val，参数值以a开头 location /if/ {     set $res miss;     if ($arg_val ~* '^a') {         set $res hit;         echo $res;     }     echo $res; }