mybatis替換成mybatisplus后報錯mybatisplus Invalid bound statement (not found):

項目原來是mybatis，之后由於生成代碼不方便，覺得替換成mybatisplus，引入mybatisplus后，啟動項目報錯mybatisplus Invalid bound statement (not found):

解決方法：

1.根據錯誤信息發現是MapperMethord中MappedStatement返回結果為null，原來是新加入的dao中的方法沒有被掃描到，導致調用該方法是，報錯mybatisplus Invalid bound statement (not found):

        private MappedStatement resolveMappedStatement(Class<?> mapperInterface, String methodName, Class<?> declaringClass, Configuration configuration) {
            String statementId = mapperInterface.getName() + "." + methodName;
            if (configuration.hasStatement(statementId)) {
                return configuration.getMappedStatement(statementId);
            } else if (mapperInterface.equals(declaringClass)) {
                return null;
            } else {
                Class[] var6 = mapperInterface.getInterfaces();
                int var7 = var6.length;

                for(int var8 = 0; var8 < var7; ++var8) {
                    Class<?> superInterface = var6[var8];
                    if (declaringClass.isAssignableFrom(superInterface)) {
                        MappedStatement ms = this.resolveMappedStatement(superInterface, methodName, declaringClass, configuration);
                        if (ms != null) {
                            return ms;
                        }
                    }
                }

                return null;
            }
        }
    }

2.網絡上搜索相關問題，排除掉MapperScan問題后認為是MybatisSqlSessionFactoryBean沒有創建，因為依賴包中引用了底層依賴包，其中一個包還有mabatis。網上嘗試集中創建MybatisSqlSessionFactoryBean的方法，最終下面的方式成功。

import com.baomidou.mybatisplus.extension.plugins.PaginationInterceptor;
import com.baomidou.mybatisplus.extension.plugins.pagination.optimize.JsqlParserCountOptimize;
import com.baomidou.mybatisplus.extension.spring.MybatisSqlSessionFactoryBean;
import org.mybatis.spring.annotation.MapperScan;
import org.mybatis.spring.boot.autoconfigure.MybatisProperties;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import com.baomidou.mybatisplus.core.MybatisConfiguration;
import com.baomidou.mybatisplus.core.MybatisXMLLanguageDriver;
import org.apache.ibatis.mapping.DatabaseIdProvider;
import org.apache.ibatis.plugin.Interceptor;
import org.mybatis.spring.boot.autoconfigure.SpringBootVFS;
import org.springframework.core.env.Environment;
import org.springframework.core.io.DefaultResourceLoader;
import org.springframework.core.io.Resource;
import org.springframework.core.io.ResourceLoader;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
import org.springframework.core.io.support.ResourcePatternResolver;

import javax.sql.DataSource;
import java.io.IOException;
/**
 * Mybatis Plus 分頁攔截器配置
 *
 * @author Josh
 */
//@EnableTransactionManagement
@Configuration
@EnableConfigurationProperties(MybatisProperties.class)
@MapperScan(basePackages={"com.xxx.xxxx.**.dao.*"})
public class MybatisPlusConfig {
    @Autowired
    private Environment env;

    @Autowired
    private DataSource dataSource;

    @Autowired
    private MybatisProperties properties;

    @Autowired
    private ResourceLoader resourceLoader = new DefaultResourceLoader();

    @Autowired(required = false)
    private Interceptor[] interceptors;

    @Autowired(required = false)
    private DatabaseIdProvider databaseIdProvider;

    @Bean
    public PaginationInterceptor paginationInterceptor() {
        PaginationInterceptor paginationInterceptor = new PaginationInterceptor();
        // 設置請求的頁面大於最大頁后操作， true調回到首頁，false 繼續請求  默認false
        // paginationInterceptor.setOverflow(false);
        // 設置最大單頁限制數量，默認 500 條，-1 不受限制
        // paginationInterceptor.setLimit(500);
        // 開啟 count 的 join 優化,只針對部分 left join
        paginationInterceptor.setCountSqlParser(new JsqlParserCountOptimize(true));
        return paginationInterceptor;
    }


    @Bean
    public MybatisSqlSessionFactoryBean mybatisSqlSessionFactoryBean() throws IOException {
        MybatisSqlSessionFactoryBean mybatisPlus = new MybatisSqlSessionFactoryBean();
        mybatisPlus.setDataSource(dataSource);
        mybatisPlus.setVfs(SpringBootVFS.class);
        String configLocation = this.properties.getConfigLocation();

        if (org.apache.commons.lang.StringUtils.isNotBlank(configLocation)) {
            mybatisPlus.setConfigLocation(this.resourceLoader.getResource(configLocation));
        }
        mybatisPlus.setPlugins(this.interceptors);
        MybatisConfiguration mc = new MybatisConfiguration();
        mc.setDefaultScriptingLanguage(MybatisXMLLanguageDriver.class);
        // 數據庫和java都是駝峰，就不需要，
        //mc.setMapUnderscoreToCamelCase(false);
        mybatisPlus.setConfiguration(mc);
        if (this.databaseIdProvider != null) {
            mybatisPlus.setDatabaseIdProvider(this.databaseIdProvider);
        }
        mybatisPlus.setTypeAliasesPackage(this.properties.getTypeAliasesPackage());
        mybatisPlus.setTypeHandlersPackage(this.properties.getTypeHandlersPackage());
        mybatisPlus.setMapperLocations(this.properties.resolveMapperLocations());
        // 設置mapper.xml文件的路徑
        String mapperLocations = env.getProperty("mybatis-plus.mapper-locations");
        ResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();
        Resource[] resource = resolver.getResources(mapperLocations);
        mybatisPlus.setMapperLocations(resource);
        return mybatisPlus;
    }
}

3.mybatisplus版本為3.3.2，其中依賴的mybatis版本為3.5.4,而依賴的底層jar中mybatis版本為3.4.2，所以在pom文件中將底層jar中的myabatis排除

        <!--Mybatis Plus 提供Mybatis封裝，支持分頁-->
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatisplus-spring-boot-starter</artifactId>
            <version>1.0.5</version>
        </dependency>
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus</artifactId>
            <version>${mybatis.plus.version}</version>
            <exclusions>

            </exclusions>
        </dependency>
        <dependency>
            <groupId>com.xxx.xxxx</groupId>
            <artifactId>xxx-xxxx-model</artifactId>
            <version>${project.version}</version>
            <exclusions>
                <exclusion>
                    <groupId>org.mybatis</groupId>
                    <artifactId>mybatis</artifactId>
                </exclusion>

            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>${mybatis-spring-boot.version}</version>
        </dependency>

4.配置文件中加入xml文件的地址

mybatis-plus.mapper-locations=classpath*:com/xxx/xxxx/**/mapping/*.xml
#實體掃描，多個package用逗號或者分號分隔
mybatis-plus.typeAliasesPackage=com.cfas.cloud.**.entity
mybatis-plus.configuration.mapUnderscoreToCamelCase=true
mybatis-plus.configuration.call-setters-on-nulls=true
mybatis-plus.configuration.return-instance-for-empty-row=false

5.如果xml文件在java目錄里，而不是在resources下，需要在pom文件中加入下面配置

    <build>
        <!-- 產生的構件的文件名，默認值是${artifactId}-${version}。 -->
        <finalName>${project.artifactId}</finalName>
        <resources>
            <resource>
                <directory>src\main\java</directory>
            <includes>
                <include>**/*.xml</include>
            </includes>
            <targetPath>${build.outputDirectory}</targetPath>
            </resource>
        </resources>
    </build>

 

至此問題解決，總計花費10h左右解決。