Struts2-Learning Note Series (8)-Exception handling

Custom exceptions thrown in the background

1  PublicString Execute ()throwsException {2 3     if(GetUser (). Equalsignorecase ("User"))4     {5         Throw NewZcxexception ("Custom Exception");6     }7     if(GetUser (). Equalsignorecase ("SQL"))8     {9         Throw NewJava.sql.SQLException ("User name cannot be SQL");Ten     } One     if(GetUser (). Equals ("Zcx")) A     { -Addactionmessage ("Server Prompt! "); -         returnSUCCESS; the     } -     returnERROR; -}

Struts Configuration exception Handling

1  2 3< PackageName= "Zcx.controller" namespace= "/"extends= "Struts-default" >4<!--define a global result map--5<global-results>6<!--definition when SQL, root two logical exceptions all correspond exception.jsp page--7<result name= "SQL" >/WEB-INF/content/exception.jsp</result>8<result name= "Root" >/WEB-INF/content/exception.jsp</result>9</global-results>Ten  One<!--defining global exception mappings-- A<global-exception-mappings> -<!--When an SqlException exception is encountered in the action, -The system will be transferred to the result of name SQL-- the<exception-mapping exception= "java.sql.SQLException" result= "sql"/> -<!--When an exception exception is encountered in the action, -The system will be transferred to the result of name root-- -<exception-mapping exception= "Java.lang.Exception" result= "root"/> +</global-exception-mappings> -  +  A<action name= "Login"class= "Zcx.controller.LoginAction" > at<!--defines a local exception map, and when an myexception exception is encountered in the action, -The system will be transferred to the result of the name my-- -<exception-mapping exception= "zcx.controller.ZcxException" result= "my" ></exception-mapping> -<result name= "My" >/WEB-INF/content/exception.jsp</result> -<result name= "Error" >/WEB-INF/content/error.jsp</result> -</action> in  -<!--to handle all action--> to<action name= "*" > +<!--return the corresponding page-- -<result>/WEB-INF/content/{1}.jsp</result> the</action> *  $ Panax Notoginseng</ Package>

Struts2-Learning Note Series (8)-Exception handling