2.3.7 异常处理：finally代码块中抛出异常

license/src/main/java/iot/sixiang/license/net/TcpServer.java

@@ -45,11 +45,15 @@ public class TcpServer {
 					f.channel().closeFuture().sync();
 				} catch (InterruptedException e) {
 					// TODO Auto-generated catch block
-					log.error("Tcp服务异常，端口:{}",port);
-				}finally {
+					log.error("Tcp服务异常，端口:{}", port);
+				} finally {
 					log.debug("Tcp服务，停止退出");
-					workerGroup.shutdownGracefully();
-					bossGroup.shutdownGracefully();
+					if (workerGroup != null) {
+						workerGroup.shutdownGracefully();
+					}
+					if (bossGroup != null) {
+						bossGroup.shutdownGracefully();
+					}
 				}
 			}
 		});

license/src/main/java/iot/sixiang/license/resource/ResourceManager.java

@@ -22,7 +22,7 @@ public class ResourceManager {
     @Autowired
     ResourceService resourceService;
 
-    public void downloadDeviceInfoExcle(HttpServletResponse response, int userId) throws IOException {
+    public void downloadDeviceInfoExcle(HttpServletResponse response, int userId){
         OutputStream os = null;
         HSSFWorkbook wb = null;
         try {
@@ -113,13 +113,21 @@ public class ResourceManager {
             }
             wb.write(os);
         } catch (IOException e) {
-            log.error("Excel表格信息下载异常,{}",e.getMessage());
+            log.error("Excel表格信息下载异常,{}", e.getMessage());
         } finally {
             if (os != null) {
-                os.close();
+                try {
+                    os.close();
+                } catch (IOException e) {
+                    log.error("Excel表格信息下载异常,{}", e.getMessage());
+                }
             }
             if (wb != null) {
-                wb.close();
+                try {
+                    wb.close();
+                } catch (IOException e) {
+                    log.error("Excel表格信息下载异常,{}", e.getMessage());
+                }
             }
         }
     }

license/src/main/java/iot/sixiang/license/util/CodeGenerator.java

-package iot.sixiang.license.util;
-
-
-import com.baomidou.mybatisplus.annotation.DbType;
-import com.baomidou.mybatisplus.generator.AutoGenerator;
-import com.baomidou.mybatisplus.generator.config.DataSourceConfig;
-import com.baomidou.mybatisplus.generator.config.GlobalConfig;
-import com.baomidou.mybatisplus.generator.config.PackageConfig;
-import com.baomidou.mybatisplus.generator.config.StrategyConfig;
-import com.baomidou.mybatisplus.generator.config.rules.NamingStrategy;
-
-
-public class CodeGenerator {
-    public static void main(String[] args) {
-        // 1、创建代码生成器
-        AutoGenerator mpg = new AutoGenerator();
-
-        // 2、全局配置
-        GlobalConfig gc = new GlobalConfig();
-//        String projectPath = System.getProperty("user.dir");
-        gc.setOutputDir("D:\\zengtianlai\\test2\\ioc_sixiang_license\\license" + "/src/main/java");
-        gc.setAuthor("lai");
-        gc.setOpen(false); //生成后是否打开资源管理器
-        gc.setFileOverride(false); //重新生成时文件是否覆盖
-        gc.setServiceName("%sService");	//去掉Service接口的首字母I
-
-        mpg.setGlobalConfig(gc);
-
-        // 3、数据源配置
-        DataSourceConfig dsc = new DataSourceConfig();
-        dsc.setUrl("jdbc:mysql://localhost:3306/iot_license?serverTimezone=GMT%2B8");
-        dsc.setDriverName("com.mysql.cj.jdbc.Driver");
-        dsc.setUsername("root");
-        dsc.setPassword("123456");
-        dsc.setDbType(DbType.MYSQL);
-        mpg.setDataSource(dsc);
-
-        // 4、包配置
-        PackageConfig pc = new PackageConfig();
-        pc.setModuleName("license"); //模块名
-        pc.setParent("iot.sixiang");
-        pc.setController("controller");
-        pc.setEntity("entity");
-        pc.setService("service");
-        pc.setMapper("mapper");
-        mpg.setPackageInfo(pc);
-
-        // 5、策略配置
-        StrategyConfig strategy = new StrategyConfig();
-        strategy.setInclude("sys_oper_log");
-        strategy.setNaming(NamingStrategy.underline_to_camel);//数据库表映射到实体的命名策略
-        strategy.setTablePrefix(pc.getModuleName() + "_"); //生成实体时去掉表前缀
-
-        strategy.setColumnNaming(NamingStrategy.underline_to_camel);//数据库表字段映射到实体的命名策略
-        strategy.setEntityLombokModel(true); // lombok 模型 @Accessors(chain = true) setter链式操作
-
-        strategy.setRestControllerStyle(true); //restful api风格控制器
-        strategy.setControllerMappingHyphenStyle(true); //url中驼峰转连字符
-
-        mpg.setStrategy(strategy);
-
-
-        // 6、执行
-        mpg.execute();
-    }
-}
-