idea中编写Lamda表达式，编译报错，提示JDK版本错误

浅浅的花香味﹌ 2023-02-18 09:35 2阅读 0赞

晚上在写个线程，用到了Runnable，想着用lamda表达式实现哈，结果写完启动，报下面的错。很明显是因为JDK版本不对的问题。遂开始检查，idea中所有的JDK版本相关的配置  
![20200616234302417.png][]

*  project structure->project  
    这块的配置也是OK的  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0ppYVdlaTI0Mzg_size_16_color_FFFFFF_t_70]
 *  project structure->module  
    检查OK  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0ppYVdlaTI0Mzg_size_16_color_FFFFFF_t_70 1]
 *  project structure->module->dependencies  
    检查ok  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0ppYVdlaTI0Mzg_size_16_color_FFFFFF_t_70 2]
 *  setting->maven->importing   
    检查发现是我本地安装的JDK没问题。  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0ppYVdlaTI0Mzg_size_16_color_FFFFFF_t_70 3]  
    \-setting->compiler->java compiler

问题在这，Target bytecode version配置的是7。将这个参数修改为8，编译成功！  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0ppYVdlaTI0Mzg_size_16_color_FFFFFF_t_70 4]  
发现的这个问题没有什么技术难度，但是有助于对于工具的熟悉记录下。

[20200616234302417.png]: https://img-blog.csdnimg.cn/20200616234302417.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0ppYVdlaTI0Mzg_size_16_color_FFFFFF_t_70]: https://img-blog.csdnimg.cn/20200616234320820.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0ppYVdlaTI0Mzg=,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0ppYVdlaTI0Mzg_size_16_color_FFFFFF_t_70 1]: https://img-blog.csdnimg.cn/20200616234401392.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0ppYVdlaTI0Mzg=,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0ppYVdlaTI0Mzg_size_16_color_FFFFFF_t_70 2]: https://img-blog.csdnimg.cn/2020061623451440.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0ppYVdlaTI0Mzg=,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0ppYVdlaTI0Mzg_size_16_color_FFFFFF_t_70 3]: https://img-blog.csdnimg.cn/20200616233911863.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0ppYVdlaTI0Mzg=,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0ppYVdlaTI0Mzg_size_16_color_FFFFFF_t_70 4]: https://img-blog.csdnimg.cn/202006162348390.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0ppYVdlaTI0Mzg=,size_16,color_FFFFFF,t_70