分离依懒jar包,mybatis plus 的lambda表达式报错

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312237823 剑圣 2021-03-25 08:35

一、该问题的重现步骤是什么？

分离依懒jar包的打包方式，pom里build标签下的内容如下

<build>
    <finalName>esr</finalName>
    <resources>
        <resource>
            <directory>src/main/resources</directory>
        </resource>
        <resource>
            <directory>src/main/java</directory>
            <includes>
                <include>**/*.xml</include>
            </includes>
        </resource>
    </resources>
    <pluginManagement>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <version>${spring.boot.version}</version>
                <configuration>
                    <finalName>${project.build.finalName}</finalName>
                </configuration>
                <executions>
                    <execution>
                        <goals>
                            <goal>repackage</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
            <plugin>
                <groupId>com.spotify</groupId>
                <artifactId>docker-maven-plugin</artifactId>
                <version>${docker.plugin.version}</version>
                <configuration>
                    <imageName>${docker.registry.url}/blade/${project.artifactId}:${project.version}</imageName>
                    <dockerDirectory>${project.basedir}</dockerDirectory>
                    <dockerHost>${docker.registry.host}</dockerHost>
                    <resources>
                        <resource>
                            <targetPath>/</targetPath>
                            <directory>${project.build.directory}</directory>
                            <include>${project.build.finalName}.jar</include>
                        </resource>
                    </resources>
                    <registryUrl>${docker.registry.url}</registryUrl>
                    <serverId>${docker.registry.url}</serverId>
                    <pushImage>true</pushImage>
                </configuration>
            </plugin>
        </plugins>
    </pluginManagement>
    <plugins>
        <!-- 打JAR包，不包含依赖文件；显式剔除配置文件 -->
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-jar-plugin</artifactId>
            <configuration>
                <!--不打包资源文件，剔除配置文件-->
                <excludes>
                    <exclude>*.**</exclude>
                    <exclude>*/*.xml</exclude>
                    <exclude>*.properties</exclude>
                    <exclude>*.yml</exclude>
                    <exclude>*/*.properties</exclude>
                    <exclude>*/*.yml</exclude>
                </excludes>
                <archive>
                    <manifest>
                        <!--将classpath添加到依赖描述 -->
                        <addClasspath>true</addClasspath>
                        <!--MANIFEST.MF 中 Class-Path 加入前缀-->
                        <!--lib文件夹内容，需要 maven-dependency-plugin插件补充-->
                        <classpathPrefix>lib/</classpathPrefix>
                        <!--jar包不包含唯一版本标识-->
                        <useUniqueVersions>false</useUniqueVersions>
                        <!--指定入口类-->
                        <mainClass>org.springblade.Application</mainClass>
                    </manifest>
                    <manifestEntries>
                        <!--MANIFEST.MF 中 Class-Path 加入资源文件目录，加入自定义路径，多个路径用空格隔开-->
                        <!--此处resources文件夹的内容，需要maven-resources-plugin插件补充上-->
                        <Class-Path>./resources/</Class-Path>
                    </manifestEntries>
                </archive>
                <outputDirectory>${project.build.directory}</outputDirectory>
            </configuration>
        </plugin>

        <!--拷贝依赖 copy-dependencies-->
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-dependency-plugin</artifactId>
            <executions>
                <execution>
                    <id>copy-dependencies</id>
                    <phase>package</phase>
                    <goals>
                        <goal>copy-dependencies</goal>
                    </goals>
                    <configuration>
                        <outputDirectory>
                            ${project.build.directory}/lib/
                        </outputDirectory>
                    </configuration>
                </execution>
            </executions>
        </plugin>

        <!--拷贝资源文件 copy-resources-->
        <plugin>
            <artifactId>maven-resources-plugin</artifactId>
            <executions>
                <execution>
                    <id>copy-resources</id>
                    <phase>package</phase>
                    <goals>
                        <goal>copy-resources</goal>
                    </goals>
                    <configuration>
                        <resources>
                            <resource>
                                <directory>src/main/resources</directory>
                                <includes>
                                    <include>*.properties</include>
                                    <include>*.yml</include>
                                    <include>*/*.properties</include>
                                    <include>*/*.properties</include>
                                    <include>**/*.xml</include>
                                </includes>
                            </resource>
                            <resource>
                                <directory>src/main/java</directory>
                                <includes>
                                    <include>**/*.xml</include>
                                </includes>
                            </resource>
                        </resources>
                        <outputDirectory>${project.build.directory}/resources</outputDirectory>
                    </configuration>
                </execution>
            </executions>
        </plugin>

        <!--spring boot repackage，依赖 maven-jar-plugin 打包的jar包 重新打包成 spring boot 的jar包-->
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
            <configuration>
                <!--重写包含依赖，包含不存在的依赖，jar里没有pom里的依赖-->
                <includes>
                    <include>
                        <groupId>non-exists</groupId>
                        <artifactId>non-exists</artifactId>
                    </include>
                </includes>
                <layout>ZIP</layout>
                <!--使用外部配置文件，jar包里没有资源文件-->
                <addResources>true</addResources>
                <outputDirectory>${project.build.directory}</outputDirectory>
            </configuration>
            <executions>
                <execution>
                    <goals>
                        <goal>repackage</goal>
                    </goals>
                    <configuration>
                        <!--配置jar包特殊标识 配置后，保留原文件，生成新文件 *-run.jar -->
                        <!--配置jar包特殊标识 不配置，原文件命名为 *.jar.original，生成新文件 *.jar -->
                        <!--<classifier>run</classifier>-->
                    </configuration>
                </execution>
            </executions>
        </plugin>
        <plugin>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>${maven.plugin.version}</version>
            <configuration>
                <source>${java.version}</source>
                <target>${java.version}</target>
                <encoding>UTF-8</encoding>
                <compilerArgs>
                    <arg>-parameters</arg>
                </compilerArgs>
            </configuration>
        </plugin>
        <!--maven打包时，跳过测试-->
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-surefire-plugin</artifactId>
            <configuration>
                <skip>true</skip>
            </configuration>
        </plugin>
    </plugins>

</build>

2. 打完包后，正常启动，但只要是用到mybatis-plus 的lambda表达式的地方，都报错，报错如下：

java.lang.IllegalStateException: Failed to execute CommandLineRunner
        at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:784)
        at org.springframework.boot.SpringApplication.callRunners(SpringApplication.java:765)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:319)
        at org.springframework.boot.builder.SpringApplicationBuilder.run(SpringApplicationBuilder.java:140)
        at org.springblade.core.launch.BladeApplication.run(BladeApplication.java:49)
        at org.springblade.Application.main(Application.java:34)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:48)
        at org.springframework.boot.loader.Launcher.launch(Launcher.java:87)
        at org.springframework.boot.loader.Launcher.launch(Launcher.java:51)
        at org.springframework.boot.loader.PropertiesLauncher.main(PropertiesLauncher.java:578)
Caused by: com.baomidou.mybatisplus.core.exceptions.MybatisPlusException: This is impossible to happen
        at com.baomidou.mybatisplus.core.toolkit.ExceptionUtils.mpe(ExceptionUtils.java:39)
        at com.baomidou.mybatisplus.core.toolkit.support.SerializedLambda.resolve(SerializedLambda.java:67)
        at com.baomidou.mybatisplus.core.toolkit.LambdaUtils.lambda$resolve$0(LambdaUtils.java:64)
        at java.util.Optional.orElseGet(Unknown Source)
        at com.baomidou.mybatisplus.core.toolkit.LambdaUtils.resolve(LambdaUtils.java:63)
        at com.baomidou.mybatisplus.core.conditions.AbstractLambdaWrapper.columnToString(AbstractLambdaWrapper.java:63)
        at com.baomidou.mybatisplus.core.conditions.AbstractLambdaWrapper.columnToString(AbstractLambdaWrapper.java:59)
        at com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper.set(LambdaUpdateWrapper.java:92)
        at com.baomidou.mybatisplus.extension.conditions.update.LambdaUpdateChainWrapper.set(LambdaUpdateChainWrapper.java:45)
        at com.baomidou.mybatisplus.extension.conditions.update.LambdaUpdateChainWrapper.set(LambdaUpdateChainWrapper.java:31)
        at com.baomidou.mybatisplus.core.conditions.update.Update.set(Update.java:30)
        at org.springblade.modules.socket.runner.ServerRunner.run(ServerRunner.java:37)
        at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:781)
        ... 13 common frames omitted
Caused by: java.lang.ClassNotFoundException: org.springblade.modules.socket.runner.ServerRunner
        at java.net.URLClassLoader.findClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at java.lang.Class.forName0(Native Method)
        at java.lang.Class.forName(Unknown Source)
        at java.io.ObjectInputStream.resolveClass(Unknown Source)
        at com.baomidou.mybatisplus.core.toolkit.support.SerializedLambda$1.resolveClass(SerializedLambda.java:61)
        at java.io.ObjectInputStream.readNonProxyDesc(Unknown Source)
        at java.io.ObjectInputStream.readClassDesc(Unknown Source)
        at java.io.ObjectInputStream.readClass(Unknown Source)
        at java.io.ObjectInputStream.readObject0(Unknown Source)
        at java.io.ObjectInputStream.defaultReadFields(Unknown Source)
        at java.io.ObjectInputStream.readSerialData(Unknown Source)
        at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source)
        at java.io.ObjectInputStream.readObject0(Unknown Source)
        at java.io.ObjectInputStream.readObject(Unknown Source)
        at java.io.ObjectInputStream.readObject(Unknown Source)
        at com.baomidou.mybatisplus.core.toolkit.support.SerializedLambda.resolve(SerializedLambda.java:65)
        ... 24 common frames omitted

二、你期待的结果是什么？实际看到的又是什么？

分离jar包，减小主包的大小，

三、你正在使用的是什么产品，什么版本？在什么操作系统上？

bladex boot项目，2.4.0.RELEASE，win环境

四、请提供详细的错误堆栈信息，这很重要。

五、若有更多详细信息，请在下面提供。

Caused by: java.lang.ClassNotFoundException: org.springblade.modules.socket.runner.ServerRunner

主要报错原因是找不到你的类，这个还是与配置有关，你不要把mybatis-plus的包分离出去

                                          
          

                                
              
                       
                        作者追问:2021-03-25 16:00
                  
  
  怎么排除mybatis的包？具体怎么配置？