Nginx得知——Hello World模

2019-04-14 16:09发布

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Hello World HTTP模

1.构造config

ngx_addon_name=ngx_http_mytest_module HTTP_MODULES="$HTTP_MODULESngx_http_mytest_module" NGX_ADDON_SRCS="$NGX_ADDON_SRCS$ngx_addon_dir/ngx_http_mytest_module.c"  

2.在ngx_http_mytest_module.c中定义mytest模块

#include #include #include static ngx_int_t ngx_http_mytest_handler(ngx_http_request_t* r); static char* ngx_http_mytest(ngx_conf_t* cf, ngx_command_t* cmd, void* conf); //用于定义模块的配置文件參数 static ngx_command_t ngx_http_mytest_commonds[] = { { ngx_string("mytest"), NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF | NGX_HTTP_LMT_CONF | NGX_CONF_NOARGS, ngx_http_mytest, NGX_HTTP_LOC_CONF_OFFSET, 0, NULL } ngx_null_command }; //指向ngx_http_module接口（HTTP框架要求） static ngx_http_module ngx_http_mytest_module_ctx = { NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL }; //定义mytest模块 ngx_module_t ngx_http_mytest_module = { ngx_MODULE_v1, &ngx_http_mytest_module_ctx, ngx_http_mytest_commands, NGX_HTTP_MODULE, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NGX_MODULE_V1_PADDING }; //当在某个配置块中出现mytest配置项时。nginx会调用ngx_http_mytest方法 static char* ngx_http_mytest(ngx_conf_t* cf, ngx_command_t* cmd, void* conf) { ngx_http_core_loc_conf_t* clcf; clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module); clcf->handler = ngx_http_mytest_handler; return NGX_CONF_OK; } //在这里处理用户请求，并发送响应 static ngx_int_t ngx_http_mytest_handler(ngx_http_request_t* r) { if(!(r->method & (NGX_HTTP_GET | NGX_HTTP_HEAD))){ return NGX_HTTP_NOT_ALLOWED; } ngx_int_t rc = ngx_http_discard_request_body(r); if(rc != NGX_OK){ return rc; } ngx_str_t type = ngx_string("text/plain"); ngx_str+t response = ngx_string("Hello World!"); r->headers_out.status= NGX_HTTP_OK; r->headers_out.content_length_n = response.len; r->headerS_out.content_type = type; rc = ngx_http_send_header(r); if(rc == NGX_ERROR || rc->NGX_OK || r->header_only){ return rc; } ngx_buf_t* b; b = ngx_create_temp_buf(r->pool, response.len); if(b == NULL){ return NGX_HTTP_INTERNAL_SERVER_ERROR; } ngx_memcpy(b->pos, response.data, response.len); b->last = b->pos + response.len; b->last_buf = 1; ngx_chain_t out; out.buf = b; out.next = NULL; return ngx_http_output_filter(r, &out); }


 

3.在ngx.conf中http里面默认的server中增加例如以下配置

location /test{ mytest; }  

4.编译安装nginx

./configure --add-module=/home/chen123/nginx/exp2 黄 {MOD}区域为config和ngx_http_mytest_module.c的安装文件夹) make sudo make install  

5.启动nginx

sudo /usr/local/nginx/sbin/nginx  

6.显示结果例如以下：

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