flume监控ftp得json文件

src/main/java/com/ihooyah/flume/sink/DAOClass.java

@@ -9,11 +9,10 @@ import java.sql.ResultSet;
 import java.sql.SQLException;
 import java.sql.Statement;
 import java.text.SimpleDateFormat;
-import java.util.ArrayList;
-import java.util.Date;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
+import java.util.*;
+
+import com.alibaba.fastjson.JSONArray;
+import com.alibaba.fastjson.JSONObject;
 import org.apache.flume.Event;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -37,6 +36,7 @@ public class DAOClass {
     }
 
     public void insertData(Event event, Map<String, String> params) throws Exception {
+        //同步.json文件的逻辑
         try {
             String body = new String(event.getBody(),"UTF-8");
             Map<String, String> headers = event.getHeaders();
@@ -45,86 +45,57 @@ public class DAOClass {
             String tableName = (String)params.get("tableName");
             String partition = (String)params.get("partition");
             String iscustom = (String)params.get("iscustom");
+            JSONObject initObject=JSONObject.parseObject(body);
+            JSONArray initArray=JSONArray.parseArray(initObject.get("data").toString());
             if (!"false".equals(iscustom)) {
                 if ("true".equals(iscustom)) {
                     ;
                 }
             } else {
                 String columns = "";
+                List<String> columnList = new ArrayList<>();
                 Statement st = this.connection.createStatement();
-                String nowDate;
-                String[] files=fileName.split("\\.");
-                String isTableExist="select table_name from INFORMATION_SCHEMA.Tables where table_name='"+files[0].trim()+"'";
-                ResultSet tableResult=st.executeQuery(isTableExist);
-                if ("false".equals(tableResult.next()+"")){
-                    if (body.contains(";")){
-                        String[] columnArray=body.split(";");
-                        String createTableSql="create table "+files[0].trim()+"(id int PRIMARY key AUTO_INCREMENT";
+                tableName = initObject.get("type").toString();
+                String isTableExist = "select table_name from INFORMATION_SCHEMA.Tables where table_name='" + tableName + "'";
+                ResultSet tableResult = st.executeQuery(isTableExist);
+                if ("false".equals(tableResult.next()+"")) {
+                    JSONObject jsonObject = JSONObject.parseObject(initArray.getString(0));
+                    Iterator<String> keys = jsonObject.keySet().iterator();
+                    while (keys.hasNext()) {
+                        String column=keys.next();
+                        columns = columns + column + ",";
+                        columnList.add(column);
+                    }
+                    String createTableSql = "create table " + tableName + "(id int PRIMARY key AUTO_INCREMENT";
                     String columnSql;
-                        for (int i = 0; i <columnArray.length ; i++) {
-                            columnSql=","+columnArray[i].trim()+" varchar(100)";
-                            createTableSql=createTableSql+columnSql;
+                    for (String column : columnList) {
+                        columnSql = "," + column.trim() + " varchar(100)";
+                        createTableSql = createTableSql + columnSql;
                     }
-                        createTableSql=createTableSql+",file_name varchar(30),create_time datetime);";
+                    createTableSql = createTableSql + ",file_name varchar(30),create_time datetime);";
                     st.execute(createTableSql);
                 }
-                }
-                if (columnsMap.get(tableName) == null) {
-                    nowDate = "select COLUMN_NAME from INFORMATION_SCHEMA.Columns where table_name='" + tableName + "' and  table_schema='" + databaseName + "'";
-
-                    for(ResultSet resultSet = st.executeQuery(nowDate); resultSet.next(); columns = columns + resultSet.getString("COLUMN_NAME") + ",") {
-                        ;
-                    }
-
-                    columns = columns.substring(0, columns.length() - 1);
-                    columnsMap.put(tableName, columns);
-                } else {
-                    columns = (String)columnsMap.get(tableName);
-                }
-
-                nowDate = getNowDate();
-                String[] datas = body.split(partition);
-                List<String> dataList = new ArrayList();
-                dataList.add("");
-                String[] arr$ = datas;
-                int i1 = datas.length;
-
-                for(int i$ = 0; i$ < i1; ++i$) {
-                    String data = arr$[i$];
-                    if (data!=null && !"".equals(data)){
-                        dataList.add(data);
-                    }
-                }
-
-                dataList.add(fileName);
-                dataList.add(nowDate);
-                String indexs = "";
-                i1 = 0;
-                while(true) {
-                    if (i1 >= dataList.size()) {
-                        indexs = indexs.substring(0, indexs.length() - 1);
-                        INSERT_QUERY = "INSERT INTO " + tableName + "(" + columns + ") values (" + indexs + ")";
-                        break;
-                    }
-
-                    String ind = "";
-                    if (((String)dataList.get(i1)).equals("")) {
-                        ind = "null,";
-                    } else {
-                        ind = "'" + (String)dataList.get(i1) + "',";
-                    }
-
-                    indexs = indexs + ind;
-                    ++i1;
-                }
-            }
-            System.out.println("插入语句:"+INSERT_QUERY);
+                String values = "";
+                for (Object data : initArray) {
+                    JSONObject dataJson = JSONObject.parseObject(data.toString());
+                    Iterator<String> keys = dataJson.keySet().iterator();
+                    while (keys.hasNext()) {
+                        String index=keys.next();
+                        columns = columns + index + ",";
+                        values = values +"'"+dataJson.get(index)+"'"+ ",";
+                    }
+                    columns=columns+"file_name,create_time";
+                    SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
+                    values=values+"'"+fileName+"','"+sdf.format(new Date())+"'";
+                    INSERT_QUERY = "INSERT INTO " + tableName + "(" + columns + ") values (" + values + ")";
+                    System.out.println("数据新增语句:"+INSERT_QUERY);
                     PreparedStatement insertStmnt = this.connection.prepareStatement(INSERT_QUERY);
                     insertStmnt.execute();
+                }
+            }
         } catch (SQLException var20) {
             var20.printStackTrace();
         }
-
     }
 
     public void createConnection(String driver, String db_url, String user, String password) throws IOException {