轉自：http://blog.csdn.net/generalyy0/article/details/6955752

知識點一：

@Transactional//預設只有runtime（執行時）異常回滾
@Transactional(rollbackFor = Exception.class)//表示丟擲Exception異常後，回滾

知識點二：

在測試類裡測試時需要用到的註解：

注：測試一定要保證：方法裡的每一種情況到被測試到，也就是程式碼的覆蓋率達到100%。

package com.security.test.service;

import java.lang.reflect.InvocationTargetException;
import java.util.List;

import org.apache.commons.beanutils.BeanUtils;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.annotation.DirtiesContext;
import org.springframework.test.annotation.DirtiesContext.ClassMode;
import org.springframework.test.annotation.Rollback;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.test.context.support.GenericXmlContextLoader;
import org.springframework.test.context.transaction.TransactionConfiguration;
import org.springframework.transaction.annotation.Transactional;

import com.cgodo.mvc.service.Result;
import com.security.entity.SecurityPermission;
import com.security.model.AddSecurityPermissionModel;
import com.security.model.UpdateSecurityPermissionModel;
import com.security.service.SecurityPermissionI;

/**
 * 
 * 許可權服務層測試類
 * 
 * @author 鬱永 [email protected]

//測試時需要的

@RunWith(value = SpringJUnit4ClassRunner.class) //在使用所有註釋前必須使用@RunWith(SpringJUnit4ClassRunner.class),讓測試運行於Spring測試環境
@ContextConfiguration(locations = {"classpath:/com/security/resource/spring/context/application/applicationContext.xml"} , loader = GenericXmlContextLoader.class)

@ContextConfiguration 註解有以下兩個常用的屬性：locations：可以通過該屬性手工指定 Spring 配置檔案所在的位置，可以指定一個或多個 Spring 配置檔案用，分開。如下所示： @ContextConfiguration(locations={“aa/aa.xml”,” aa/bb.xml”})

inheritLocations：是否要繼承父測試用例類中的 Spring 配置檔案，預設為 true。】

@DirtiesContext(classMode = ClassMode.AFTER_CLASS)  //@DirtiesContext 在測試方法上出現這個註解時，表明底層Spring容器在該方法的執行中被“汙染”，從而必須在方法執行結束後重新建立（無論該測試是否通過）。

@TransactionConfiguration( transactionManager = "transactionManager" , defaultRollback = false) //【@TransactionConfiguration 為配置事務性測試定義了類級別的元資料。PlatformTransactionManager預設的例項叫transactionManager， 如果需要的PlatformTransactionManager不是“transactionManager”的話，那麼可以顯式配置驅動事務的PlatformTransactionManager的bean的名字。此外， 可以將defaultRollback標誌改為false，表示不回滾。通常， @TransactionConfiguration與@ContextConfiguration搭配使用。

@ContextConfiguration
@TransactionConfiguration(transactionManager="transactionManager", defaultRollback=false)】

@Transactional //開啟類級別的事物
public class TestSecurityPermissionService {

//註解生成SecurityPermissionI 的代理
 @Autowired
 SecurityPermissionI securityPermissionI;
  
 /**
  * 描述：初始化測試資料
  * @throws InvocationTargetException 
  * @throws IllegalAccessException 
  */
 @Before
 public void before() throws IllegalAccessException, InvocationTargetException{
  //新增刪除測試資料
  SecurityPermission securityPermissionDelete = new SecurityPermission();
  securityPermissionDelete.setPermissionId("TEST_permissionId-Delete");
  securityPermissionDelete.setPermissionDescription("TEST_許可權描述資訊-Delete");
  securityPermissionDelete.setPermissionType("TEST_許可權型別-Delete");
  Result<List<SecurityPermission>> resultDelete = securityPermissionI.getPermissionsByType(securityPermissionDelete);
  
  AddSecurityPermissionModel addSecurityPermissionModelDelete = new AddSecurityPermissionModel();
  BeanUtils.copyProperties(addSecurityPermissionModelDelete, securityPermissionDelete);
  if(resultDelete.getData() == null){
   securityPermissionI.addPermission(addSecurityPermissionModelDelete);
  }
  
  //新增刪除測試資料
  SecurityPermission securityPermissionDeleteNot = new SecurityPermission();
  securityPermissionDeleteNot.setPermissionId("TEST_permissionId-DeleteNot");
  securityPermissionDeleteNot.setPermissionDescription("TEST_許可權描述資訊-DeleteNot");
  securityPermissionDeleteNot.setPermissionType("TEST_許可權型別-DeleteNot");
  Result<List<SecurityPermission>> resultDeleteNot = securityPermissionI.getPermissionsByType(securityPermissionDeleteNot);
  
  AddSecurityPermissionModel addSecurityPermissionModelDeleteNot = new AddSecurityPermissionModel();
  BeanUtils.copyProperties(addSecurityPermissionModelDeleteNot, securityPermissionDeleteNot);
  if(resultDeleteNot.getData() == null){
   securityPermissionI.addPermission(addSecurityPermissionModelDeleteNot);
  }
  
  
  
  //新增更新測試資料
  SecurityPermission securityPermissionUpdate = new SecurityPermission();
  securityPermissionUpdate.setPermissionId("TEST_permissionId-Update");
  securityPermissionUpdate.setPermissionDescription("TEST_許可權描述資訊-Update");
  securityPermissionUpdate.setPermissionType("TEST_許可權型別-Update");
  Result<List<SecurityPermission>> resultUpdate = securityPermissionI.getPermissionsByType(securityPermissionUpdate);
  
  AddSecurityPermissionModel addSecurityPermissionModelUpdate = new AddSecurityPermissionModel();
  BeanUtils.copyProperties(addSecurityPermissionModelUpdate, securityPermissionUpdate);
  if(resultUpdate.getData() == null){
   securityPermissionI.addPermission(addSecurityPermissionModelUpdate);
  }
  
  //新增查詢測試資料
  SecurityPermission securityPermissionSelect = new SecurityPermission();
  securityPermissionSelect.setPermissionId("TEST_permissionId-Select");
  securityPermissionSelect.setPermissionDescription("TEST_許可權描述資訊-Select");
  securityPermissionSelect.setPermissionType("TEST_許可權型別-Select");
  Result<List<SecurityPermission>> resultSelect = securityPermissionI.getPermissionsByType(securityPermissionSelect);

  AddSecurityPermissionModel addSecurityPermissionModelSelect = new AddSecurityPermissionModel();
  BeanUtils.copyProperties(addSecurityPermissionModelSelect, securityPermissionSelect);
  if(resultSelect.getData() == null){
   securityPermissionI.addPermission(addSecurityPermissionModelSelect);
  }
  
 }
 
//@Test 這個將不會被測試
 public void Test(){
  boolean bb = false;
  Assert.assertFalse(bb);
 }

 @Rollback(true)//設定測試後回滾
 @Transactional//為方法開啟事物
 @Test //標註要測試的方法，不新增@Test將不會進行測試
 public void TestAddPermission(){
  SecurityPermission securityPermission = new SecurityPermission();
  securityPermission.setPermissionId("TEST_permissionId-Add");
  securityPermission.setPermissionDescription("TEST_許可權描述資訊-Add");
  securityPermission.setPermissionType("TEST_許可權型別-Add");
  
  AddSecurityPermissionModel model = new AddSecurityPermissionModel();
  try {
   BeanUtils.copyProperties(model, securityPermission);
  } catch (IllegalAccessException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (InvocationTargetException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
  
  //測試許可權不存在的情況
  Result isNotExists;
  try {
   isNotExists = securityPermissionI.addPermission(model);

   Assert.assertTrue(isNotExists.isSuccess());
  } catch (IllegalAccessException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (InvocationTargetException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
  
  //測試許可權已存在的情況
  Result isExists;
  try {
   isExists = securityPermissionI.addPermission(model);
   Assert.assertFalse(isExists.isSuccess());
  } catch (IllegalAccessException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (InvocationTargetException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
 }
 
  }