alias

after trying to migrate our app from tomcat 7 to tomcat 8 we have found that aliases does not work as before. Here is a content of context.xml file: <Context reloadable="true" aliases="/d1=C://dir1,/d2=C://temp//dir2//,/d3=C://temp//dir3//" > <Valve className="org.apache.catalina.valves.RemoteAddrValve" allow=".*" /> </Context> On tomcat 7 I can ropen this urls: http://localhost:8080/myapp/d2/data.xml http://localhost:8080/myapp/d3/data.png On tomcat 8 I get 404 error. Any idea? Thanks. I have found a solution. Problem was in context.xml. To make alias work on tomcat 8 here is required change

Is there an easy way to define an operator alias for the = operator in PostgreSQL? How is that solved for the != and <> operator? Only the <> operator seems to be in pg_operators. Is the != operator hard-coded? This is needed for an application which uses a self-defined operator. In most environments this operator should act like a = , but there are some cases where we define a special behavior by creating an own operator and operator class. But for the normal case our operator should just be an alias for the = operator, so that it is transparent to the application which implementation is used

This question already has an answer here: Does accessing the first field of a struct via a C cast violate strict aliasing? 1 answer Reinterpret struct with members of the same type as an array in a standard compliant way [duplicate] 5 answers This is an strict aliasing question, as in will the compiler cause any optimization order problems with this. Say that I have three public float s in a struct XMFLOAT3 (not unlike this one .) And I want to cast to a float* . Will this land me in optimization trouble? XMFLOAT3 foo = {1.0f, 2.0f, 3.0f}; auto bar = &foo.x; bar[2] += 5.0f; foo.z += 5.0f; cout

偶然发现Linux支持自定义命令 现在Linux环境上经常有多个python环境，但是python2马上要停止维护了，所以我想多使用python3，但是Linux上的python命令调用的是python3 有两种方案 1、在/usr/bin目录下生成新的软连接进行调用 2、还有种方式就是通过alias别名工具将python命令更改默认调用python3 具体实现如下: user@computer:~$ ls /usr/bin/python* /usr/bin/python /usr/bin/python2-wsdump /usr/bin/python3-jsonpatch /usr/bin/python3.6m /usr/bin/python2 /usr/bin/python2.7 /usr/bin/python3-jsonpointer /usr/bin/python3m /usr/bin/python2-jsonschema /usr/bin/python3 /usr/bin/python3-jsonschema /usr/bin/python2-pbr /usr/bin/python3-jsondiff /usr/bin/python3.6 得到目录下的python3环境路径，通过alias命令将python命令调用的python2改为python3 user

对nginx还是处于小白阶段，知道的只是简单基础，以下配置没有问题，已实现 文件：nginx-1.15.11\conf\ nginx.conf 注释： # 后台接口 ：location ^~ /gestep-web/ 　　　　　location ^~ /gestep-image/ 　　　　　... 本地代码 ：location /playground 　　　　　location /app #user nobody; worker_processes 1; error_log logs/error.log; #error_log logs/error.log notice; #error_log logs/error.log info; #pid logs/nginx.pid; events { worker_connections 1024; } http { include mime.types; default_type application/octet-stream; #log_format main '$remote_addr - $remote_user [$time_local] "$request" ' # '$status $body_bytes_sent "$http_referer" ' # '"$http_user_agent" "$http_x