MockMVC Mockito ::空指針異常

Question

我在spring-mvc中有項目。我寫的Mockito一個測試用例，下面是代碼：

@RunWith(SpringJUnit4ClassRunner.class) 
@ContextConfiguration({"classpath:applicationContext.xml"}) 
@Configurable 
public class ABCControllerTest { 

    @InjectMocks 
    CustomerController instance; 

    @Mock 
    Service paymentService; 

    @Mock 
    OfferService offerService; 

    @Mock 
    CategoryRepository categoryRepository; 

    @Mock 
    Category category; 

    @Mock 
    RuleService ruleService ; 

    private MockMvc mockMvc; 


    public PaymentCustomerControllerTest() { 
    } 

    @Before 
    public void setup() { 

     // this must be called for the @Mock annotations above to be processed 
     // and for the mock service to be injected into the controller under 
     // test. 
     MockitoAnnotations.initMocks(this); 
     mockMvc = MockMvcBuilders.standaloneSetup(instance).build(); 
    } 

    @Test 
    public void testGetNewCashback() throws Exception { 
     int a= 100; 
     int b=200; 
     // System.out.print(mockMvc); 
     try{ 
      mockMvc.perform(
       get("repo/getTotalSum?Id=306187C35A5C98A1B01E3DCDE8BAC1DA&visitId=306187C35A5C98A1B01E3DCDE8BAC1DA&mobileStatus=0")) 
       .andExpect(MockMvcResultMatchers.status().isOk()); 
     }catch(Exception ex){ 
      System.out.print(ex.getMessage()); 
     } 
     a = 100; 
    } 

    @Test 
    public void testGetNewCashback() throws Exception { 

     ResultDTO result = instance.getTotalSum(Id, visitId, mobileStatus); 
     assertEquals(result, expResult); 
     // TODO review the generated test code and remove the default call to fail. 
     fail("The test case is a prototype."); 
    } 

} 

，這是我的POM文件：

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> 

    <modelVersion>4.0.0</modelVersion> 
    <groupId>com.ssww.cust</groupId> 
    <artifactId>cust</artifactId> 
    <version>1.0.0</version> 
    <packaging>war</packaging> 

    <name>Settlement</name> 
    <url>http://maven.apache.org</url> 

    <properties> 
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> 
     <skipTests>true</skipTests> 

     <spring.core.version>3.1.2.RELEASE</spring.core.version> 
     <spring.security.core.version>3.1.0.RELEASE</spring.security.core.version> 
     <spring.data.jpa.version>1.1.0.RELEASE</spring.data.jpa.version> 

     <mysql.connector.version>5.1.21</mysql.connector.version> 
     <hibernate.version>4.1.6.Final</hibernate.version> 
     <c3p0.version>0.9.1.2</c3p0.version> 

     <querydsl.version>2.7.0</querydsl.version> 

     <log4j.version>1.2.17</log4j.version> 

     <cglib.version>2.2.2</cglib.version> 
     <aspectj.version>1.6.12</aspectj.version> 
     <slf4j.version>1.6.1</slf4j.version> 
     <javax.servlet-api.version>2.5</javax.servlet-api.version> 
     <javax.jstl-taglibs.version>1.1.2</javax.jstl-taglibs.version> 
     <jackson.version>1.9.3</jackson.version> 

     <!-- Testing --> 
     <mockito.version>1.8.5</mockito.version> 
     <junit.version>4.8.2</junit.version> 

     <!-- Plugins --> 
     <maven.copy.plugin.version>0.2.3</maven.copy.plugin.version> 
     <maven.compiler.plugin.version>2.3.2</maven.compiler.plugin.version> 
     <maven.apt.plugin.version>1.0</maven.apt.plugin.version> 
     <netbeans.hint.deploy.server>Tomcat</netbeans.hint.deploy.server> 
    </properties> 



    <dependencies> 
     <!-- javamelody-core > 
     <dependency> 
       <groupId>net.bull.javamelody</groupId> 
       <artifactId>javamelody-core</artifactId> 
       <version>1.49.0</version> 
     </dependency--> 
     <!-- itext, option to add PDF export --> 
     <dependency> 
      <groupId>com.lowagie</groupId> 
      <artifactId>itext</artifactId> 
      <version>2.1.7</version> 
      <exclusions> 
       <exclusion> 
        <artifactId>bcmail-jdk14</artifactId> 
        <groupId>bouncycastle</groupId> 
       </exclusion> 
       <exclusion> 
        <artifactId>bcprov-jdk14</artifactId> 
        <groupId>bouncycastle</groupId> 
       </exclusion> 
       <exclusion> 
        <artifactId>bctsp-jdk14</artifactId> 
        <groupId>bouncycastle</groupId> 
       </exclusion> 
      </exclusions> 
     </dependency> 

<!--  <dependency> 
      <groupId>org.springframework</groupId> 
      <artifactId>spring-orm</artifactId> 
      <version>4.0.0.RELEASE</version> 
     </dependency>--> 
     <dependency> 
      <groupId>com.google.code.gson</groupId> 
      <artifactId>gson</artifactId> 
      <version>2.2.2</version> 
      <scope>compile</scope> 
     </dependency> 
     <dependency> 
      <groupId>com.googlecode.json-simple</groupId> 
      <artifactId>json-simple</artifactId> 
      <version>1.1</version> 
     </dependency> 
     <dependency> 
      <groupId>commons-httpclient</groupId> 
      <artifactId>commons-httpclient</artifactId> 
      <version>3.1</version> 
     </dependency> 
     <!--  <dependency> 
      <groupId>com.ocpsoft.rewrite</groupId> 
      <artifactId>rewrite-impl-servlet</artifactId> 
      <version>1.0.0.Alpha3</version> 
     </dependency>--> 
     <!--  <dependency> 
      <groupId>com.lowagie</groupId> 
      <artifactId>itext</artifactId> 
      <version>2.1.7</version> 
     </dependency>--> 

     <!-- Spring Core --> 
     <dependency> 
      <groupId>org.springframework</groupId> 
      <artifactId>spring-core</artifactId> 
      <version>${spring.core.version}</version> 
      <type>jar</type> 
      <scope>compile</scope> 
     </dependency> 
     <dependency> 
      <groupId>org.springframework</groupId> 
      <artifactId>spring-web</artifactId> 
      <version>${spring.core.version}</version> 
      <type>jar</type> 
      <scope>compile</scope> 
     </dependency> 
     <dependency> 
      <groupId>org.springframework</groupId> 
      <artifactId>spring-tx</artifactId> 
      <version>${spring.core.version}</version> 
      <type>jar</type> 
      <scope>compile</scope> 
     </dependency> 
     <dependency> 
      <groupId>org.springframework</groupId> 
      <artifactId>spring-webmvc</artifactId> 
      <version>${spring.core.version}</version> 
      <type>jar</type> 
      <scope>compile</scope> 
     </dependency> 
     <dependency> 
      <groupId>org.springframework</groupId> 
      <artifactId>spring-jdbc</artifactId> 
      <version>${spring.core.version}</version> 
      <type>jar</type> 
      <scope>compile</scope> 
     </dependency> 
     <dependency> 
      <groupId>org.springframework</groupId> 
      <artifactId>spring-oxm</artifactId> 
      <version>${spring.core.version}</version> 
      <type>jar</type> 
      <scope>compile</scope> 
     </dependency> 
     <dependency> 
      <groupId>org.springframework</groupId> 
      <artifactId>spring-aspects</artifactId> 
      <version>${spring.core.version}</version> 
      <type>jar</type> 
      <scope>compile</scope> 
     </dependency> 

     <!-- A seamless aspect-oriented extension to the Java programming language --> 
     <dependency> 
      <groupId>org.aspectj</groupId> 
      <artifactId>aspectjrt</artifactId> 
      <version>${aspectj.version}</version> 
     </dependency> 

     <dependency> 
      <groupId>org.aspectj</groupId> 
      <artifactId>aspectjweaver</artifactId> 
      <version>${aspectj.version}</version> 
     </dependency> 

     <!-- Cglib is a powerful, high performance and quality Code Generation 
     Library, It is used to extend JAVA classes and implements interfaces at runtime. --> 
     <dependency> 
      <groupId>cglib</groupId> 
      <artifactId>cglib-nodep</artifactId> 
      <version>${cglib.version}</version> 
      <type>jar</type> 
      <scope>compile</scope> 
     </dependency> 

     <dependency> 
      <groupId>org.springframework</groupId> 
      <artifactId>spring-orm</artifactId> 
      <version>3.1.1.RELEASE</version> 
     </dependency> 

     <!-- The JavaServer Pages Standard Tag Library (JSTL) encapsulates, as 
     simple tags, core functionality common to many JSP applications. --> 
     <dependency> 
      <groupId>javax.servlet</groupId> 
      <artifactId>jstl</artifactId> 
      <version>${javax.jstl-taglibs.version}</version> 
     </dependency> 
     <dependency> 
      <groupId>javax.mail</groupId> 
      <artifactId>mail</artifactId> 
      <version>1.4</version> 
     </dependency> 
     <dependency> 
      <groupId>taglibs</groupId> 
      <artifactId>standard</artifactId> 
      <version>${javax.jstl-taglibs.version}</version> 
     </dependency> 

     <dependency> 
      <groupId>com.fasterxml.jackson.datatype</groupId> 
      <artifactId>jackson-datatype-hibernate4</artifactId> 
      <version>2.1.2</version> 
     </dependency> 
     <dependency> 
      <groupId>com.fasterxml.jackson.dataformat</groupId> 
      <artifactId>jackson-dataformat-xml</artifactId> 
      <version>2.4.0</version> 
     </dependency> 

     <!-- Data Mapper package is a high-performance data binding package built 
     on Jackson JSON processor --> 
     <dependency> 
      <groupId>org.codehaus.jackson</groupId> 
      <artifactId>jackson-mapper-asl</artifactId> 
      <version>${jackson.version}</version> 
      <type>jar</type> 
      <scope>compile</scope> 
     </dependency> 

     <!-- Jackson is a high-performance JSON processor (parser, generator) --> 
     <dependency> 
      <groupId>org.codehaus.jackson</groupId> 
      <artifactId>jackson-core-asl</artifactId> 
      <version>${jackson.version}</version> 
      <type>jar</type> 
      <scope>compile</scope> 
     </dependency> 

     <!-- Logger --> 


     <dependency> 
      <groupId>log4j</groupId> 
      <artifactId>log4j</artifactId> 
      <version>${log4j.version}</version> 
      <type>jar</type> 
      <scope>compile</scope> 
     </dependency> 



     <!-- The Simple Logging Facade for Java or (SLF4J) serves as a simple facade 
     or abstraction for various logging frameworks, e.g. java.util.logging, log4j 
     and logback, allowing the end user to plug in the desired logging framework 
     at deployment time. --> 
     <dependency> 
      <groupId>org.slf4j</groupId> 
      <artifactId>slf4j-api</artifactId> 
      <version>${slf4j.version}</version> 
     </dependency> 
     <dependency> 
      <groupId>org.slf4j</groupId> 
      <artifactId>slf4j-log4j12</artifactId> 
      <version>${slf4j.version}</version> 
     </dependency> 

     <!-- Spring Security --> 
     <dependency> 
      <groupId>org.springframework.security</groupId> 
      <artifactId>spring-security-core</artifactId> 
      <version>${spring.security.core.version}</version> 
      <type>jar</type> 
      <scope>compile</scope> 
     </dependency> 
     <dependency> 
      <groupId>org.springframework.security</groupId> 
      <artifactId>spring-security-web</artifactId> 
      <version>${spring.security.core.version}</version> 
      <type>jar</type> 
      <scope>compile</scope> 
     </dependency> 
     <dependency> 
      <groupId>org.springframework.security</groupId> 
      <artifactId>spring-security-config</artifactId> 
      <version>${spring.security.core.version}</version> 
      <type>jar</type> 
      <scope>compile</scope> 
     </dependency> 

     <dependency> 
      <groupId>org.springframework.security</groupId> 
      <artifactId>spring-security-taglibs</artifactId> 
      <version>${spring.security.core.version}</version> 
      <type>jar</type> 
      <scope>compile</scope> 
     </dependency> 

     <!-- Spring Data JPA --> 
     <dependency> 
      <groupId>org.springframework.data</groupId> 
      <artifactId>spring-data-jpa</artifactId> 
      <version>${spring.data.jpa.version}</version> 
     </dependency> 


     <!-- Database pooling --> 
     <dependency> 
      <groupId>c3p0</groupId> 
      <artifactId>c3p0</artifactId> 
      <version>${c3p0.version}</version> 
      <type>jar</type> 
      <scope>compile</scope> 
     </dependency> 

     <!-- MySQL Connector --> 
     <dependency> 
      <groupId>mysql</groupId> 
      <artifactId>mysql-connector-java</artifactId> 
      <version>${mysql.connector.version}</version> 
      <type>jar</type> 
      <scope>compile</scope> 
     </dependency> 

     <!-- Hibernate and JPA --> 
     <dependency> 
      <groupId>org.hibernate</groupId> 
      <artifactId>hibernate-core</artifactId> 
      <version>${hibernate.version}</version> 
     </dependency> 
     <dependency> 
      <groupId>org.hibernate</groupId> 
      <artifactId>hibernate-entitymanager</artifactId> 
      <version>${hibernate.version}</version> 
     </dependency> 
     <dependency> 
      <groupId>org.hibernate</groupId> 
      <artifactId>hibernate-ehcache</artifactId> 
      <version>${hibernate.version}</version> 
     </dependency> 

     <!-- QueryDSL --> 
     <dependency> 
      <groupId>com.mysema.querydsl</groupId> 
      <artifactId>querydsl-apt</artifactId> 
      <version>${querydsl.version}</version> 
      <scope>provided</scope> 
     </dependency> 
     <dependency> 
      <groupId>com.mysema.querydsl</groupId> 
      <artifactId>querydsl-jpa</artifactId> 
      <version>${querydsl.version}</version> 
     </dependency> 

     <!-- Javax Servlet. This needs to be included for runtime only! --> 
     <dependency> 
      <groupId>javax.servlet</groupId> 
      <artifactId>servlet-api</artifactId> 
      <version>${javax.servlet-api.version}</version> 
      <scope>provided</scope> 
     </dependency> 

     <!-- Testing dependencies --> 
     <dependency> 
      <groupId>org.mockito</groupId> 
      <artifactId>mockito-all</artifactId> 
      <version>1.9.5</version> 
      <type>jar</type> 
      <scope>test</scope> 
     </dependency> 
     <dependency> 
      <groupId>org.springframework</groupId> 
      <artifactId>spring-test</artifactId> 
      <version>4.0.6.RELEASE</version> 
      <type>jar</type> 
      <scope>test</scope> 
     </dependency> 
     <dependency> 
      <groupId>com.sun.jersey</groupId> 
      <artifactId>jersey-core</artifactId> 
      <version>1.4</version> 
      <type>jar</type> 
     </dependency> 
     <dependency> 
      <groupId>org.json</groupId> 
      <artifactId>json</artifactId> 
      <version>20090211</version> 
      <type>jar</type> 
     </dependency> 
     <dependency> 
      <groupId>org.apache.poi</groupId> 
      <artifactId>poi</artifactId> 
      <version>3.8</version> 
      <type>jar</type> 
     </dependency> 
     <dependency> 
      <groupId>org.apache.httpcomponents</groupId> 
      <artifactId>httpclient</artifactId> 
      <version>4.1.2</version> 
     </dependency> 
     <dependency> 
      <groupId>org.apache.velocity</groupId> 
      <artifactId>velocity</artifactId> 
      <version>1.7</version> 
     </dependency> 

     <dependency> 
      <groupId>org.modeshape</groupId> 
      <artifactId>modeshape-sequencer-msoffice</artifactId> 
      <version>3.1.2.Final</version> 
      <type>jar</type> 
     </dependency> 
     <!--  <dependency> 
      <groupId>org.xhtmlrenderer</groupId> 
      <artifactId>core-renderer</artifactId> 
      <version>R8</version> 
      <type>jar</type> 
     </dependency>--> 
     <dependency> 
      <groupId>org.xhtmlrenderer</groupId> 
      <artifactId>core-renderer</artifactId> 
      <version>R8</version> 
      <type>jar</type> 
     </dependency> 
     <dependency> 
      <groupId>com.lowagie</groupId> 
      <artifactId>itext</artifactId> 
      <version>2.0.8</version> 
     </dependency> 
     <dependency> 

      <groupId>net.sf.supercsv</groupId> 
      <artifactId>super-csv</artifactId> 
      <version>2.1.0</version> 
      <type>jar</type> 
     </dependency> 


     <dependency> 
      <groupId>com.mixpanel</groupId> 
      <artifactId>mixpanel-java</artifactId> 
      <version>1.4.2</version> 
     </dependency> 
     <dependency> 
      <groupId>com.jcraft</groupId> 
      <artifactId>jsch</artifactId> 
      <version>0.1.50</version> 
     </dependency> 
<!--  <dependency> 
      <groupId>org.testng</groupId> 
      <artifactId>testng</artifactId> 
      <version>6.8.1</version> 
      <scope>test</scope> 
     </dependency>--> 

     <dependency> 
      <groupId>junit</groupId> 
      <artifactId>junit</artifactId> 
      <version>4.10</version> 
      <scope>test</scope> 
      <type>jar</type> 
     </dependency> 
    </dependencies> 

    <build> 
     <finalName>settlement</finalName> 
     <plugins> 
      <plugin> 
       <groupId>org.mortbay.jetty</groupId> 
       <artifactId>jetty-maven-plugin</artifactId> 
       <version>7.1.2.v20100523</version> 
      </plugin> 
      <plugin> 
       <groupId>org.apache.maven.plugins</groupId> 
       <artifactId>maven-compiler-plugin</artifactId> 
       <version>${maven.compiler.plugin.version}</version> 
       <configuration> 
        <source>1.6</source> 
        <target>1.6</target> 
       </configuration> 
      </plugin> 
      <plugin> 
     <groupId>org.apache.maven.plugins</groupId> 
     <artifactId>maven-surefire-plugin</artifactId> 
     <version>2.0</version> 
     <configuration> 
      <skipTests>false</skipTests> 
     </configuration> 
     </plugin> 
      <plugin> 
       <groupId>com.mysema.maven</groupId> 
       <artifactId>maven-apt-plugin</artifactId> 
       <version>1.0.3</version><!--$NO-MVN-MAN-VER$ --> 
       <executions> 
        <execution> 
         <phase>generate-sources</phase> 
         <goals> 
          <goal>process</goal> 
         </goals> 
         <configuration> 
          <outputDirectory>src/main/java</outputDirectory> 
          <processor>com.mysema.query.apt.jpa.JPAAnnotationProcessor</processor> 
         </configuration> 
        </execution> 
       </executions> 
      </plugin> 

      <plugin> 
       <groupId>org.jacoco</groupId> 
       <artifactId>jacoco-maven-plugin</artifactId> 
       <version>0.5.7.201204190339</version> 
       <executions> 
        <execution> 
         <goals> 
          <goal>prepare-agent</goal> 
         </goals> 
        </execution> 
        <execution> 
         <id>report</id> 
         <phase>prepare-package</phase> 
         <goals> 
          <goal>report</goal> 
         </goals> 
        </execution> 
       </executions> 
      </plugin> 
     </plugins> 
     <pluginManagement> 
      <plugins> 
       <plugin> 
        <groupId>org.apache.tomcat.maven</groupId> 
        <artifactId>tomcat6-maven-plugin</artifactId> 
        <configuration> 
         <addContextWarDependencies>true</addContextWarDependencies> 
        </configuration> 
        <version>2.1</version> 
       </plugin> 
       <plugin> 
        <groupId>org.apache.tomcat.maven</groupId> 
        <artifactId>tomcat7-maven-plugin</artifactId> 
        <configuration> 
         <ajpPort>8391</ajpPort> 
         <port>8392</port> 
         <addContextWarDependencies>true</addContextWarDependencies> 
        </configuration> 
        <version>2.1</version> 
       </plugin> 
      </plugins> 
     </pluginManagement> 
    </build> 

    <repositories> 

     <!-- For main Spring releases --> 
     <repository> 
      <id>org.springframework.maven.release</id> 
      <name>Spring Maven Release Repository</name> 
      <url>http://maven.springframework.org/release</url> 
      <releases> 
       <enabled>true</enabled> 
      </releases> 
      <snapshots> 
       <enabled>false</enabled> 
      </snapshots> 
     </repository> 

     <!-- 
       <repository> 
        <id>jboss</id> 
        <name>JBoss repository</name> 
        <url>https://repository.jboss.org/nexus/content/repositories/releases</url> 
       </repository> 
     --> 

    </repositories> 

</project> 

但在建設項目中，我得到這個異常：

java.lang.NullPointerException 
    at ABCControllerTest.testGetNewCashback(ABCControllerTest.java:46) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
    at java.lang.reflect.Method.invoke(Method.java:606) 
    at org.codehaus.surefire.battery.AbstractBattery.executeTestMethod(AbstractBattery.java:124) 
    at org.codehaus.surefire.battery.AbstractBattery.executeTestMethods(AbstractBattery.java:70) 
    at org.codehaus.surefire.battery.AbstractBattery.execute(AbstractBattery.java:49) 
    at org.codehaus.surefire.battery.JUnitBattery.execute(JUnitBattery.java:224) 
    at org.codehaus.surefire.Surefire.executeBattery(Surefire.java:204) 
    at org.codehaus.surefire.Surefire.run(Surefire.java:153) 
    at org.codehaus.surefire.Surefire.run(Surefire.java:77) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) 
    at the value of mock is getting null, so getting null pointer exception. I googled out, changed spring version to 4.0.0Release, still same. 

有什麼想法？謝謝。

改爲獨立後：我得到java.lang.Exception的：MVC是具有零價值。是我的代碼

@RunWith(MockitoJUnitRunner.class) 
@ContextConfiguration({"classpath:applicationContext.xml"}) 
@WebAppConfiguration 
public class PaymentCustomerControllerTest { 

    @Autowired 
    private WebApplicationContext wac; 

    private MockMvc mockMvc; 



    @Before 
    public void setUp() { 
      MockitoAnnotations.initMocks(this); 
      CustomerController instance = new CustomerController(); 

      mockMvc = MockMvcBuilders.standaloneSetup(instance).build(); 
    } 


    @Test 
    public void testGetNewCashback() throws Exception { 
     if(mockMvc==null){ 
      throw new Exception("mvc is having null value"); 
     } 
      mockMvc.perform(
       get("info/getInfo?Id=306&visitId=30618&mobileStatus=0")) 
       .andExpect(MockMvcResultMatchers.status().isOk()); 

    } 

Answer 1

如果你想使用的的Mockito你的測試，你必須使用MockitoJUnitRunner不SpringJUnit4ClassRunner