Spring Programming Transaction Control

Step1: Configuration XML file

1 <!--Transaction Management Bean -2   <BeanID= "TransactionManager"class= "Org.springframework.jdbc.datasource.DataSourceTransactionManager">3     < Propertyname= "DataSource"ref= "DataSource" />4   </Bean>5   6     <BeanID= "Transactiontemplate"7 class= "Org.springframework.transaction.support.TransactionTemplate">8         < Propertyname= "TransactionManager">9             <refBean= "TransactionManager"/>Ten         </ Property> One     </Bean> A  -   <!--The driver for @transactional this annotation, which is the annotation-based way of using the transaction configuration declaration - -   <Tx:annotation-drivenTransaction-manager= "TransactionManager" />

Step2: Automatic injection of Transactiontemplate objects

1 Import org.springframework.transaction.support.TransactionTemplate;     2 @Autowired 3 Private Transactiontemplate transactiontemplate;

Step3: Managing transactions by using the Execute method

1Transactiontemplate.execute (NewTransactioncallbackwithoutresult () {2                 3 @Override4                 protected voidDointransactionwithoutresult (Transactionstatus arg0) {5String s =Userservice.newuser (User,currentuserid);6User newuser=Userservice.getuser (User.getusername ());7 Roleservice.createroleuser (Newuser.getuserid (), rolesid);8                 }9});

The complete process is as follows:

1  PackageCom.superb.mips.terminal.rest.controller;2 3 ImportJava.util.HashMap;4 5 Importorg.apache.commons.lang3.StringUtils;6 Importorg.springframework.beans.factory.annotation.Autowired;7 ImportOrg.springframework.stereotype.Controller;8 ImportOrg.springframework.transaction.TransactionStatus;9 Importorg.springframework.transaction.annotation.Transactional;Ten ImportOrg.springframework.transaction.support.TransactionCallbackWithoutResult; One Importorg.springframework.transaction.support.TransactionTemplate; A Importorg.springframework.web.bind.annotation.RequestMapping; - ImportOrg.springframework.web.bind.annotation.ResponseBody; -  the ImportCom.superb.mips.system.domain.User; - ImportCom.superb.mips.system.service.inf.RoleService; - ImportCom.superb.mips.system.service.inf.UserService; -  +  - @Controller +@RequestMapping ("Api/users") A  Public classRestusercontroller { at @Autowired -     PrivateUserService UserService; -&orgname= China Mobile &orgid=1 - @Autowired -     PrivateRoleService RoleService; - @Autowired in     Privatetransactiontemplate transactiontemplate; -  to@RequestMapping (value = "/createusers.json") + @ResponseBody - @Transactional the      PublicHashmap<string, Object> CreateUser (FinalUser User,Final intCurrentuserid,FinalString Rolesid) { *hashmap<string, object> map =NewHashmap<string, object>(); $String[] Strary=rolesid.split (",");Panax Notoginseng         if(strary.length==0){ -Map.put ("Result", 1); theMap.put ("description", "Bind role"); +             returnmap; A}Else{ the              for(inti=0;i<strary.length;i++){ +                 Try { - Integer.parseint (Strary[i]); $}Catch(Exception e) { $Map.put ("Result", 2); -Map.put ("description", "Please bind the correct role ID"); -                     returnmap; the                 } -             }Wuyi         } the         Try { -Transactiontemplate.execute (NewTransactioncallbackwithoutresult () { Wu                  - @Override About                 protected voidDointransactionwithoutresult (Transactionstatus arg0) { $String s =Userservice.newuser (User,currentuserid); -User newuser=Userservice.getuser (User.getusername ()); - Roleservice.createroleuser (Newuser.getuserid (), rolesid); -                 } A             }); +Map.put ("result", 0); theMap.put ("description", "New user success.") "); -}Catch(Exception e) { $Map.put ("Result", 3); theMap.put ("description", "New user failed!") "); the         } the          the         returnmap; -     } in}

Spring Programming Transaction Control