springboot静态方法mock

1.pom文件添加maven依赖：

        <properties>
            <powermock.version>2.0.2</powermock.version>
        </properties>

        <!-- powermock -->
        <!-- https://mvnrepository.com/artifact/org.powermock/powermock-api-mockito -->
        <dependency>
            <groupId>org.powermock</groupId>
            <artifactId>powermock-api-mockito2</artifactId>
            <version>${powermock.version}</version>
            <scope>test</scope>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.powermock/powermock-module-junit4 -->
        <dependency>
            <groupId>org.powermock</groupId>
            <artifactId>powermock-module-junit4</artifactId>
            <version>${powermock.version}</version>
            <scope>test</scope>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.powermock/powermock-module-junit4-rule -->
        <dependency>
            <groupId>org.powermock</groupId>
            <artifactId>powermock-module-junit4-rule</artifactId>
            <version>${powermock.version}</version>
            <scope>test</scope>
        </dependency>

2.单元测试，在测试类上加以下几个注解：

@RunWith(PowerMockRunner.class)
@PowerMockRunnerDelegate(SpringRunner.class)
@PowerMockIgnore( {"javax.management.*", "javax.net.*"})
@PrepareForTest(WebTTsUtil.class)
@SpringBootTest()

WebTTsUtil是我要mock的类，替换成你需要mock的类。

    @Test
    @Transactional
    public void speechSynthesize() throws Exception {
        PowerMockito.mockStatic(WebTTsUtil.class);
        PowerMockito.when(WebTTsUtil.speechSynthesize(Mockito.anyString())).thenReturn(returnMap);
        restReadExercisesMockMvc.perform(post("/api/speech/synthesis")
                .contentType(TestUtil.APPLICATION_JSON_UTF8)
                .content(TestUtil.convertObjectToJsonBytes(map)))
                .andExpect(status().isOk());
    }

3.遇到的问题：
①单独测A测试类能通过，测试所有测试类A测试类通不过，可能是powermock和mockito的版本不适配，版本对应关系如下：

修改pom文件（junit用的是4.12）：

        <properties>
                <powermock.version>1.7.0RC4</powermock.version>
                <mockito.version>2.7.5</mockito.version>
        </properties>
        <dependency><!-- 如果不是springboot,不需要加这个 -->
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <exclusions>
                <exclusion>
                    <groupId>org.mockito</groupId>
                    <artifactId>mockito-core</artifactId>
                </exclusion>
             </exclusions>
            <scope>test</scope>
        </dependency>
        <!-- powermock -->
        <!-- https://mvnrepository.com/artifact/org.powermock/powermock-api-mockito -->
        <dependency>
            <groupId>org.powermock</groupId>
            <artifactId>powermock-api-mockito2</artifactId>
            <version>${powermock.version}</version>
            <exclusions>
                <exclusion>
                    <groupId>org.mockito</groupId>
                    <artifactId>mockito-core</artifactId>
                </exclusion>
            </exclusions>
            <scope>test</scope>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.powermock/powermock-module-junit4 -->
        <dependency>
            <groupId>org.powermock</groupId>
            <artifactId>powermock-module-junit4</artifactId>
            <version>${powermock.version}</version>
            <scope>test</scope>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.powermock/powermock-module-junit4-rule -->
        <dependency>
            <groupId>org.powermock</groupId>
            <artifactId>powermock-module-junit4-rule</artifactId>
            <version>${powermock.version}</version>
            <exclusions>
                <exclusion>
                    <groupId>org.mockito</groupId>
                    <artifactId>mockito-core</artifactId>
                </exclusion>
            </exclusions>
            <scope>test</scope>
        </dependency>
        
        <!-- https://mvnrepository.com/artifact/org.mockito/mockito-core -->
        <dependency>
            <groupId>org.mockito</groupId>
            <artifactId>mockito-core</artifactId>
            <version>${mockito.version}</version><!--$NO-MVN-MAN-VER$-->
            <scope>test</scope>
        </dependency>

参考：1.https://blog.csdn.net/icarusliu/article/details/80429257；
2.http://ju.outofmemory.cn/entry/100348；
3.https://stackoverflow.com/questions/43940857/after-upgrade-to-2-7-classnotfoundexception-org-mockito-exceptions-reporter-whe；
4.http://stackmirror.caup.cn/page/sksdmpy4cfg7；
5.https://github.com/powermock/powermock/wiki/Mockito#supported-versions;