微服单独部署-.do请求报错解决（20200311nginx问题）

1、修改nginx.conf

在34-35行添加如下，解决map_hash报错

map_hash_max_size 8096;

map_hash_bucket_size 128;

在66-69行，修改添加如下，当前是注释状态

    lua_need_request_body on;

    lua_package_path "/usr/local/src/lualib/?.lua;;";

    lua_package_cpath "/usr/local/src/lualib/?.so;;";

     init_worker_by_lua_file /data/iuap/middleware/nginx/conf.d/tools.lua;

2、修改conf.d/upstream-tomcat.conf , 大概30-130行，替换整段.do

    location ~* /nccloud(.*)\.do$ {

         set $appcode '';

         set $service '';

         rewrite_by_lua_block {

             local parameters  = split_path(ngx.var.uri)

             local server = ""

             local bussiness = ""

             local appcode = ""

             local randservice = ""

             --获得请求的headers来判断是否表单请求

             local receive_headers = ngx.req.get_headers()

             --获取匹配的URI如果是需要随机服务响应的

             randservice = isRandomService(ngx.var.uri)

             --如果参数为空则url不合法

             if(#parameters == 0) then

                ngx.exit(ngx.HTTP_FORBIDDEN)

             end

             --如果参数层级为5层则不进行解析直接往后传

             local len = table.getn(parameters)

             if (len > 5) then

                bussiness = parameters[2]

             else

                --获取url的匹配是否为平台action

                local module = parameters[2]

                if receive_headers["transcode"] then

                    appcode = receive_headers["transcode"]

                    ngx.log(ngx.ERR, "transcode:"..appcode)

                else

                   --form表单请求的appcode的解析

                   if (receive_headers["Content-Type"] == "application/x-www-form-urlencoded") then

                      --未考虑临时缓存问题，大于默认的缓存值则需要从datafile中找数据

                      local post_args_tab = ngx.req.get_post_args()

                      appcode = post_args_tab["sys_appcode"]

                   elseif randservice == false then

                      local dkjson = require("dkjson")

                      local data = ngx.req.get_body_data()

                      local obj, pos, err = dkjson.decode(data, 1, nil)

                      appcode = obj.sysParamJson.sys_appcode

                   end

                end

                --如果为随机服务策略，则随机增加领域标识

                if (randservice == true or isSpecialAppCode(appcode)) then

                    local bussinessServices = {"baseapp"}

                    if not bussinessServices then

                       bussiness = module

                    else

                       --随机取当前的服务来进行响应

                       local serviceNum = table.getn(bussinessServices)

                       math.randomseed(tostring(ngx.now()):reverse():sub(1, 6))

                       local serviceIndex = math.random(1,serviceNum)

                       bussiness = bussinessServices[serviceIndex]

                       ngx.log(ngx.ERR, "URL rewrite random:"..bussiness)

                    end

                else

                    --如果为平台action则进行body的解析

                    local platformservice = isPlatformService(ngx.var.uri)

                     if (platformservice == true) then

                       if appcode then

                          local bussinessData = ""

                          local res = ngx.location.capture('/nccloud/uapbd/platform/pub/queryservicebyAppcode.do',

                           {

                               method = ngx.HTTP_POST,

                               header = header,

                               args = {transcode = appcode},

                               body = "{\"sysParamJson\":{\"busiaction\": \"查询appCode对应的服务\"}}"

                           }

                          )

                          if (200 == res.status or 403 == res.status) then

                             ngx.log(ngx.ERR, "rockzhu res.status"..res.status)

                             if res.header["service"] then

                                bussinessData = res.header["service"]

                                ngx.log(ngx.ERR, "rockzhu res.service"..res.header["service"])

                             end

                          end

                           --如果不存在该服务标识，则默认为模块

                          if not bussinessData then

                             bussiness = "baseapp"

                          else

                             bussiness = bussinessData

                          end

                       else

                          bussiness = "baseapp"

                       end

                     else

                       nxg.log("URL rewrite failed!")

                       ngx.exit(404)

                     end

                   end

                 ngx.log(ngx.ERR, "URL rewrite server:"..bussiness)

               end

           --url进行拼接

           for i,v in ipairs(parameters) do

               if (i == 2 ) then

                    server = server .. "/" .. bussiness

               end

               server = server .. "/" .. v

           end

            ngx.log(ngx.ERR, "URL relocation server:"..server)

            ngx.exec(server)

        }

       }

如果conf.d/upstream-tomcat.conf最后有如下，则删除

    lua_need_request_body on;

    lua_package_path "/usr/local/src/lualib/?.lua;;";

    lua_package_cpath "/usr/local/src/lualib/?.so;;";

     init_worker_by_lua_file /data/iuap/middleware/nginx/conf.d/tools.lua;

另，删除conf.d/upstream-tomcat.conf下的

map $appcode $bussinessmodule{

xx

xx

xx

}