处理异常

Author: xiaour

SpringBootDemo/src/main/java/com/xiaour/spring/boot/config/DataBaseConfiguration.java

@@ -40,7 +40,6 @@ public void setEnvironment(Environment env) {
 	 */
 	@Bean(name = "dataSource",destroyMethod = "close")
 	public DataSource dataSource() {
-		log.debug(env.getActiveProfiles().toString());  
 
          DruidDataSource dataSource = new DruidDataSource();  
          dataSource.setUrl(propertyResolver.getProperty("url"));  
@@ -64,7 +63,7 @@ public DataSource dataSource() {
             dataSource.setFilters("stat,wall");
 			dataSource.init();
 		} catch (SQLException e) {
-			
+			log.error(e.getMessage());
 		}
          return dataSource; 
 	}

SpringBootDemo/src/main/java/com/xiaour/spring/boot/config/MybatisConfiguration.java

@@ -64,7 +64,6 @@ public SqlSessionFactory sqlSessionFactory() {
 
 			return sessionFactory.getObject();
 		} catch (Exception e) {
-			e.printStackTrace();
 			logger.warn("Could not confiure mybatis session factory");
 			return null;
 		}

SpringBootDemo/src/main/java/com/xiaour/spring/boot/config/RedisConfig.java

@@ -1,5 +1,7 @@
 package com.xiaour.spring.boot.config;
 
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Qualifier;
 import org.springframework.beans.factory.annotation.Value;
@@ -19,7 +21,8 @@
  */
 @Configuration
 public class RedisConfig {
-     
+	private static Logger log = LoggerFactory.getLogger(RedisConfig.class);
+
 
   @Bean(name= "jedis.pool")  
   @Autowired  
@@ -33,11 +36,16 @@ public JedisPool jedisPool(@Qualifier("jedis.pool.config") JedisPoolConfig confi
   public JedisPoolConfig jedisPoolConfig (@Value("${jedis.pool.config.maxTotal}")int maxTotal,  
                               @Value("${jedis.pool.config.maxIdle}")int maxIdle,  
                               @Value("${jedis.pool.config.maxWaitMillis}")int maxWaitMillis) {  
-      JedisPoolConfig config = new JedisPoolConfig();  
-      config.setMaxTotal(maxTotal);  
-      config.setMaxIdle(maxIdle);  
-      config.setMaxWaitMillis(maxWaitMillis);  
-      return config;  
+      try {
+		JedisPoolConfig config = new JedisPoolConfig();  
+		  config.setMaxTotal(maxTotal);  
+		  config.setMaxIdle(maxIdle);  
+		  config.setMaxWaitMillis(maxWaitMillis);  
+		  return config;
+		} catch (Exception e) {
+			log.error(e.getMessage());
+		}
+	return null;  
   } 
 
 }

SpringBootDemo/src/main/java/com/xiaour/spring/boot/utils/JsonUtil.java

@@ -10,48 +10,36 @@
 import com.fasterxml.jackson.databind.ObjectMapper;
 
 public class JsonUtil {
+	
+	
 
-    public static String getJsonString(Object javaObj) {
+    public static String getJsonString(Object javaObj) throws JsonProcessingException {
         String ret = "{}";
+        
         ObjectMapper mapper = new ObjectMapper();
-        try {
-            ret = mapper.writeValueAsString(javaObj);
-        } catch (JsonProcessingException e) {
-            e.printStackTrace();
-        }
+
+        ret = mapper.writeValueAsString(javaObj);
 
 		return ret.replaceAll(":null",":\"\"");
 
     }
 
-    public static <T> T readJson2Obj(String json, Class<T> classObj) {
+    public static <T> T readJson2Obj(String json, Class<T> classObj) throws JsonParseException,JsonMappingException,IOException  {
         T ret = null;
+        
         ObjectMapper mapper = new ObjectMapper();
-        try {
-            ret = mapper.readValue(json, classObj);
-        } catch (JsonParseException e) {
-            e.printStackTrace();
-        } catch (JsonMappingException e) {
-            e.printStackTrace();
-        } catch (IOException e) {
-            e.printStackTrace();
-        }
-
+        
+        ret = mapper.readValue(json, classObj);
+        
         return ret;
     }
 
-    public static <T> T[] readJson2Array(String json, Class<T[]> classObj) {
+    public static <T> T[] readJson2Array(String json, Class<T[]> classObj) throws JsonParseException,JsonMappingException,IOException   {
         T[] ret = null;
+        
         ObjectMapper mapper = new ObjectMapper();
-        try {
-            ret = mapper.readValue(json, classObj);
-        } catch (JsonParseException e) {
-            e.printStackTrace();
-        } catch (JsonMappingException e) {
-            e.printStackTrace();
-        } catch (IOException e) {
-            e.printStackTrace();
-        }
+
+        ret = mapper.readValue(json, classObj);
 
         return ret;
     }
@@ -60,7 +48,11 @@ public static void main(String [] args){
     	Map<String,Object> map= new HashMap<>();
     	map.put("name","xiaochouyu");
     	map.put("stak","小丑鱼");
-    	System.out.println(getJsonString(map));
+    	try {
+			System.out.println(getJsonString(map));
+		} catch (JsonProcessingException e) {
+			e.printStackTrace();
+		}
     }
 
 }