,------------.              
              |<size:50>App|              
              |------------|              
              `------------'              
                     |                    
                     |                    
             ,--------------.             
             |<size:50>Nginx|             
             |--------------|             
             `--------------'             
                                          
,------------------.  ,------------------.
|== <size:30>Tomcat|  |== <size:30>Tomcat|
|------------------|  |------------------|
|rectangle WAR {   |  |rectangle WAR {   |
|    component UI  |  |    component UI  |
|}                 |  |}                 |
|}}                |  |}}                |
|                  |  |                  |
`------------------'  `------------------'
                                          
                                          
             ,--------------.             
             |<size:50>MySQL|             
             |--------------|             
             `--------------'