Hibernate openSession() vs getCurrentSession()

      SessionFactory.openSession():

      always opens a new session that you have to

      close once you are done with the operations.

     

      SessionFactory.getCurrentSession():

      returns a session bound to a context - you don't need to close this. 

     

      should always use "one session per request" or "one session per transaction"

      In one application, if the DAO layer, using Spring hibernate,

      control the life cycle via Spring session to ,

      First choice  getCurrentSession ().

Usage of @JsonView (annotation of spring)

    public class View {
      interface Summary {}
      interface SummaryWithDetail extends Summary{}
    }
    -----------------------------------
    public class User { 
      @JsonView(View.Summary.class) 
      private Long id; 
      @JsonView(View.SummaryWithDetail.class) 
      private String firstname; 
    }
    -----------------------------------
    @RequestMapping("/user")
    @JsonView(View.Summary.class) 
    //or @JsonView(View.SummaryWithDetail.class) 
    public List getUsers(){
     return userService.listUsers();
    }
    -----------------------------------
    result of @JsonView(View.Summary.class)
    [
     {
        "id": 70,
     }
    ]
    
    result of @JsonView(View.SummaryWithDetail.class)
    [
     {
        "id": 70,
        "firstname": 222
     }
    ]

ref:
http://www.jianshu.com/p/633d83dd303b#

Apache_httpd_to_Tomcat-Mod_Proxy_Setup.txt | 轉址

sudo vi /opt/lampp/etc/httpd.conf

Make sure the following are uncommented:
LoadModule proxy_module modules/mod_proxy.so
LoadModule proxy_http_module modules/mod_proxy_http.so

Add these:
ProxyPass         /eInvoiceLocate http://localhost:8080/eInvoiceLocate
ProxyPassReverse  /eInvoiceLocate http://localhost:8080/eInvoiceLocate

Reload Apache conf
# cd /opt/lampp/bin
# sudo ./apachectl -k graceful