java/idea部分问题记录

Error running 'Application': Command line is too long. Shorten command line for Application or also for Spring Boot default configuration? (2 minutes ago)

        解决1：编辑运行环境 ，每运行一个application都需要修改

        

         解决2：修改.idea的workspace.xml，一个项目仅需修改一次了

        在<component name="PropertiesComponent">下新增

        <property name="dynamic.classpath" value="true" />

java.lang.NoSuchMethodError: net.sf.jsqlparser.statement.select.PlainSelect.getGroupByColumnReferences()Ljava/util/List;

        原因：jar冲突或缺少

        解决：exclusion冲突的包，或添加

<exclusion>
	<groupId>com.github.jsqlparser</groupId>
	<artifactId>jsqlparser</artifactId>
</exclusion>

docker 运行镜像显示 no main manifest attribute, in /xxx.jar

        解决：在build中添加打包插件        

<plugins>
    <plugin>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-maven-plugin</artifactId>
        <executions>
            <execution>
                <goals>
                    <!--将依赖都打包到jar中-->
                    <goal>repackage</goal>
                </goals>
            </execution>
        </executions>
    </plugin>
</plugins>

         其他类似的找不到xml中的配置信息，添加：        

<resources>
    <resource>
        <directory>src/main/resources</directory>
        <filtering>true</filtering>
    </resource>
    <resource>
        <directory>src/main/java</directory>
        <includes>
            <include>**/*.xml</include>
        </includes>
    </resource>
</resources>

linux启动jar项目不产生nohup.out：

        启动命令后添加>/dev/null

Method breakpoints may dramatically slow down debugging

        view breakpoints查看是否开启了java method breakpoints，取消即可