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?

  1. 分离依懒jar包的打包方式,pom里build标签下的内容如下

  2. <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。

1条回答
  • 2021-03-25 11:08
    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?

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