增加StrUtil.printStackTrace方法：把异常堆栈信息转化为字符串 -> 替代 e.printStackTrace()

src/main/java/com/yexuejc/base/util/JsonUtil.java

@@ -6,11 +6,23 @@ import com.fasterxml.jackson.core.JsonParseException;
 import com.fasterxml.jackson.core.JsonParser;
 import com.fasterxml.jackson.core.JsonProcessingException;
 import com.fasterxml.jackson.core.type.TypeReference;
-import com.fasterxml.jackson.databind.*;
+import com.fasterxml.jackson.databind.DeserializationFeature;
+import com.fasterxml.jackson.databind.JavaType;
+import com.fasterxml.jackson.databind.JsonMappingException;
+import com.fasterxml.jackson.databind.JsonSerializer;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.PropertyNamingStrategies;
+import com.fasterxml.jackson.databind.SerializationFeature;
+import com.fasterxml.jackson.databind.SerializerProvider;
 import com.fasterxml.jackson.databind.json.JsonMapper;
 import com.fasterxml.jackson.databind.type.MapType;
 import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
-import com.yexuejc.base.converter.*;
+import com.yexuejc.base.converter.LocalDateDeserializer;
+import com.yexuejc.base.converter.LocalDateSerializer;
+import com.yexuejc.base.converter.LocalDateTimeDeserializer;
+import com.yexuejc.base.converter.LocalDateTimeSerializer;
+import com.yexuejc.base.converter.TimestampDeserializer;
+import com.yexuejc.base.converter.TimestampSerializer;
 
 import java.io.IOException;
 import java.io.InputStream;
@@ -179,11 +191,11 @@ public class JsonUtil {
         try {
             pojo = jsonMapper.readValue(json, cls);
         } catch (JsonParseException e) {
-            log.warning("json to Object JsonParseException.\n" + e.getMessage());
+            log.warning("json to Object JsonParseException.\n" + e);
         } catch (JsonMappingException e) {
-            log.warning("json to Object JsonMappingException.\n" + e.getMessage());
+            log.warning("json to Object JsonMappingException.\n" + StrUtil.printStackTrace(e));
         } catch (IOException e) {
-            log.warning("json to Object IOException.\n" + e.getMessage());
+            log.warning("json to Object IOException.\n" + StrUtil.printStackTrace(e));
         }
 
         return pojo;
@@ -201,13 +213,13 @@ public class JsonUtil {
         try {
             pojo = jsonMapper.readValue(json, cls);
         } catch (JsonParseException e) {
-            log.warning("json to Object JsonParseException.\n" + e.getMessage());
+            log.warning("json to Object JsonParseException.\n" + StrUtil.printStackTrace(e));
         } catch (JsonMappingException e) {
-            log.warning("json to Object JsonMappingException.\n" + e.getMessage());
+            log.warning("json to Object JsonMappingException.\n" + StrUtil.printStackTrace(e));
         } catch (IOException e) {
-            log.warning("json to Object IOException.\n" + e.getMessage());
+            log.warning("json to Object IOException.\n" + StrUtil.printStackTrace(e));
         } catch (Exception e) {
-            e.printStackTrace();
+            log.warning("json to Object Exception.\n" + StrUtil.printStackTrace(e));
         }
 
         return pojo;
@@ -227,11 +239,11 @@ public class JsonUtil {
         try {
             pojo = jsonMapper.readValue(json, javaType);
         } catch (JsonParseException e) {
-            log.warning("json to Object JsonParseException.\n" + e.getMessage());
+            log.warning("json to Object JsonParseException.\n" + StrUtil.printStackTrace(e));
         } catch (JsonMappingException e) {
-            log.warning("json to Object JsonMappingException.\n" + e.getMessage());
+            log.warning("json to Object JsonMappingException.\n" + StrUtil.printStackTrace(e));
         } catch (IOException e) {
-            log.warning("json to Object IOException.\n" + e.getMessage());
+            log.warning("json to Object IOException.\n" + StrUtil.printStackTrace(e));
         }
         return pojo;
     }
@@ -252,11 +264,11 @@ public class JsonUtil {
         try {
             pojo = jsonMapper.readValue(json, mapType);
         } catch (JsonParseException e) {
-            log.warning("json to Object JsonParseException.\n" + e.getMessage());
+            log.warning("json to Object JsonParseException.\n" + StrUtil.printStackTrace(e));
         } catch (JsonMappingException e) {
-            log.warning("json to Object JsonMappingException.\n" + e.getMessage());
+            log.warning("json to Object JsonMappingException.\n" + StrUtil.printStackTrace(e));
         } catch (IOException e) {
-            log.warning("json to Object IOException.\n" + e.getMessage());
+            log.warning("json to Object IOException.\n" + StrUtil.printStackTrace(e));
         }
         return pojo;
     }
@@ -273,7 +285,7 @@ public class JsonUtil {
         try {
             return jsonMapper.readValue(json, javaType);
         } catch (JsonProcessingException e) {
-            log.warning("json to Object JsonParseException.\n" + e.getMessage());
+            log.warning("json to Object JsonParseException.\n" + StrUtil.printStackTrace(e));
         }
         return null;
     }
@@ -293,11 +305,11 @@ public class JsonUtil {
         try {
             pojo = jsonMapper.readValue(json, javaType);
         } catch (JsonParseException e) {
-            log.warning("json to Object JsonParseException.\n" + e.getMessage());
+            log.warning("json to Object JsonParseException.\n" + StrUtil.printStackTrace(e));
         } catch (JsonMappingException e) {
-            log.warning("json to Object JsonMappingException.\n" + e.getMessage());
+            log.warning("json to Object JsonMappingException.\n" + StrUtil.printStackTrace(e));
         } catch (IOException e) {
-            log.warning("json to Object IOException.\n" + e.getMessage());
+            log.warning("json to Object IOException.\n" + StrUtil.printStackTrace(e));
         }
         return pojo;
     }
@@ -313,7 +325,7 @@ public class JsonUtil {
         try {
             json = jsonMapper.writeValueAsString(pojo);
         } catch (JsonProcessingException e) {
-            log.warning("json to Object JsonProcessingException.\n" + e.getMessage());
+            log.warning("json to Object JsonProcessingException.\n" + StrUtil.printStackTrace(e));
         }
         return json;
     }
@@ -329,8 +341,12 @@ public class JsonUtil {
         try {
             json = jsonMapper.writerWithDefaultPrettyPrinter().writeValueAsString(obj);
         } catch (JsonProcessingException e) {
-            log.warning("json to Object JsonProcessingException.\n" + e.getMessage());
+            log.warning("json to Object JsonProcessingException.\n" + StrUtil.printStackTrace(e));
         }
         return json;
     }
+
+    public static void main(String[] args) {
+        System.out.println(JsonUtil.json2Obj("adssad", StrUtil.class));
+    }
 }

src/main/java/com/yexuejc/base/util/StrUtil.java

@@ -1,9 +1,20 @@
 package com.yexuejc.base.util;
 
 import java.io.UnsupportedEncodingException;
+import java.net.http.HttpClient;
+import java.net.http.HttpRequest;
 import java.security.MessageDigest;
 import java.security.NoSuchAlgorithmException;
-import java.util.*;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Random;
+import java.util.UUID;
+import java.util.concurrent.ExecutionException;
+import java.util.function.Consumer;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
@@ -19,7 +30,7 @@ public final class StrUtil {
     private StrUtil() {
     }
 
-    public static char[] HEX_CHAR = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'};
+    private static char[] HEX_CHAR = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'};
 
     /**
      * 判断字符串，数组，集合 是否为空
@@ -111,40 +122,6 @@ public final class StrUtil {
         return num.append(String.format("%010d", hashCode)).toString().substring(0, 8);
     }
 
-    /**
-     * 解析aa=bb&cc=dd&ee=ff格式的字符串，返回HashMap
-     *
-     * @param urlencoded
-     * @return
-     */
-    public static Map<String, String> parseUrlencoded(String urlencoded) {
-        if (isEmpty(urlencoded)) {
-            return null;
-        }
-        String[] entrys = urlencoded.split("&");
-        if (isEmpty(entrys)) {
-            return null;
-        }
-
-        Map<String, String> map = new HashMap<String, String>(16);
-        String[] kv = null;
-        for (String entry : entrys) {
-            if (isEmpty(entry)) {
-                continue;
-            }
-            kv = entry.split("=");
-            if (isEmpty(kv)) {
-                continue;
-            }
-            if (kv.length > 1) {
-                map.put(kv[0], kv[1]);
-            } else {
-                map.put(kv[0], null);
-            }
-        }
-        return map;
-    }
-
     /**
      * 字符串转换方法 把字节数组转换成16进制字符串
      *
@@ -254,8 +231,8 @@ public final class StrUtil {
     /**
      * 对ID（32位）进行编码
      *
-     * @param id
+     * @param id 32位ID
-     * @return
+     * @return 编码后的64位ID
      */
     public static String codeId(String id) {
         if (id == null || id.length() != 32) {
@@ -282,8 +259,8 @@ public final class StrUtil {
     /**
      * 对ID（32位）进行解码
      *
-     * @param coded
+     * @param coded 编码后的64位ID
-     * @return
+     * @return 解码后的32位ID
      */
     public static String decodeId(String coded) {
         if (coded == null || coded.length() != 64) {
@@ -297,6 +274,40 @@ public final class StrUtil {
         return id.toString();
     }
 
+    /**
+     * 解析aa=bb&cc=dd&ee=ff格式的字符串，返回HashMap
+     *
+     * @param urlencoded
+     * @return
+     */
+    public static Map<String, String> parseUrlencoded(String urlencoded) {
+        if (isEmpty(urlencoded)) {
+            return null;
+        }
+        String[] entrys = urlencoded.split("&");
+        if (isEmpty(entrys)) {
+            return null;
+        }
+
+        Map<String, String> map = new HashMap<String, String>(16);
+        String[] kv = null;
+        for (String entry : entrys) {
+            if (isEmpty(entry)) {
+                continue;
+            }
+            kv = entry.split("=");
+            if (isEmpty(kv)) {
+                continue;
+            }
+            if (kv.length > 1) {
+                map.put(kv[0], kv[1]);
+            } else {
+                map.put(kv[0], null);
+            }
+        }
+        return map;
+    }
+
     /**
      * map parameters 转url parameters
      *
@@ -370,7 +381,7 @@ public final class StrUtil {
     /**
      * 下划线字符
      */
-    public static final char UNDERLINE = '_';
+    private static final char UNDERLINE = '_';
 
     /**
      * 字符串下划线转驼峰格式
@@ -419,4 +430,69 @@ public final class StrUtil {
         }
         return sb.toString();
     }
+
+    private static final String NEW_LINE = "\n";
+    private static final String ERROR_MESSAGE_FORMAT = "%s.%s(%s:%d)";
+
+    /**
+     * 把异常堆栈信息转化为字符串,同时把所有的errorMessage用\n方式拼接到printStackTrace前面 -> 替代 e.printStackTrace()
+     * <p>使用e.printStackTrace()不能作为字符串处理，本方法可以转换e.printStackTrace()为字符串</p>
+     * <p><b>printStackTrace</b>信息从<i>Caused by:</i>C开始</p>
+     *
+     * @param cause
+     * @return
+     */
+    public static String printStackTraceAndMessage(Throwable cause) {
+        if (cause != null) {
+            StringBuilder msg = new StringBuilder();
+            if (isNotEmpty(cause.getMessage())) {
+                msg.append(cause.getMessage()).append(NEW_LINE);
+            }
+            String causedMsg = printStackTrace(cause, (eMessage) -> {
+                if (isNotEmpty(eMessage)) {
+                    msg.append(eMessage).append(NEW_LINE);
+                }
+            });
+            return msg.append(causedMsg).toString();
+        }
+        return "";
+    }
+
+    /**
+     * 把异常堆栈信息转化为字符串 -> 替代 e.printStackTrace()
+     * <p>使用e.printStackTrace()不能作为字符串处理，本方法可以转换e.printStackTrace()为字符串</p>
+     *
+     * @param cause
+     * @return
+     */
+    public static String printStackTrace(Throwable cause) {
+        return printStackTrace(cause, (eMessage) -> {
+        });
+    }
+
+    private static String printStackTrace(Throwable cause, Consumer<String> consumer) {
+        if (cause != null) {
+            StringBuilder sb = new StringBuilder();
+            String cClass = cause.getClass().getName();
+            String eMessage = cause.getMessage();
+            StackTraceElement[] stackTrace = cause.getStackTrace();
+            Throwable caused = cause.getCause();
+            while (caused != null) {
+                cClass = caused.getClass().getName();
+                eMessage = caused.getMessage();
+                stackTrace = caused.getStackTrace();
+                caused = caused.getCause();
+                consumer.accept(eMessage);
+            }
+            sb.append("Caused by: ").append(cClass).append(": ").append(eMessage).append(NEW_LINE);
+            for (StackTraceElement element : stackTrace) {
+                sb.append("\tat ");
+                sb.append(String.format(ERROR_MESSAGE_FORMAT, element.getClassName(), element.getMethodName(),
+                        element.getFileName(), element.getLineNumber()));
+                sb.append(NEW_LINE);
+            }
+            return sb.toString();
+        }
+        return "";
+    }
 }