csv100万数据2分30秒导入数据库_navicate导入100万条csv数据需要多久

/**
 * 
 */
import java.sql.Connection;
import java.sql.DriverManager; 
import java.sql.PreparedStatement; 
import java.sql.ResultSet; 
import java.sql.SQLException;
import java.sql.Savepoint;
import java.sql.Timestamp;
import java.util.ArrayList;
import java.util.List; 
public class BaseDao { 
	private final String DRIVER="oracle.jdbc.driver.OracleDriver"; 
	private final String URL= ""; 
	private final String USERNAME = "scott"; 
	private final String PWD = ""; 
	private Connection connection; 
	private PreparedStatement ps; 
	protected ResultSet rs; 
	protected Savepoint sp = null;
	@SuppressWarnings("rawtypes")
	protected List params;  //放单条数据
	@SuppressWarnings({ "rawtypes", "unchecked" })
	List<List> newDatas = new ArrayList(); //放每次批量的数据
	@SuppressWarnings({ "rawtypes", "unchecked" })
	List<List<List>> oneDatas = new ArrayList(); //放第一次批量的数据  出现错误的数据的批量数据
	@SuppressWarnings({ "rawtypes", "unchecked" })
	List<List<List>> twoDatas = new ArrayList(); //放第二次批量的数据  出现错误的数据的批量数据
	StringBuffer sb = null;  //sql语句
	int count = 0;
	int counts = 0;
	boolean a = true;  //设置第一次错误数据 重新执行
	boolean b = false; //设置第二次错误数据 重新执行
	public Connection getConnection(){ 
		try { 
		Class.forName(DRIVER); // 2在网络中查找数据库，创建连接对象 
		connection = DriverManager.getConnection( URL, USERNAME,PWD); 
		} catch (ClassNotFoundException e) { // TODO Auto-generated catch block 
			e.printStackTrace(); 
			} catch (SQLException e) { // TODO Auto-generated catch block 
				e.printStackTrace(); 
				} 
		return connection; 
		} 
	public void closeAll(){ 
		try { // 释放资源 
			if (rs != null) rs.close(); 
			if (ps != null) ps.close(); 
			if (connection != null) connection.close(); 
			} catch (SQLException e) { // TODO Auto-generated catch block 
				e.printStackTrace(); 
				} 
		} 
	public void delete(String table) {
		getConnection();
		try {
			ps = connection.prepareStatement("delete from " + table + " where 1=1");
			ps.execute();
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
	//execute 批量插入
	//datas 数据
	//types 每个字段的数据类型
	//table 表名称
	//batchCount 一次插入数据的大小
	@SuppressWarnings({ "rawtypes", "unchecked" })
	public void execute(List<List> datas, List types, String table, int batchCount) {
		try { 
			getConnection();
			sb = new StringBuffer();
			if(datas!= null && datas.size() != 0){ 
				//System.out.println(datas.get(0));
			for(int i = 0; i < datas.get(0).size(); i++) {
					sb.append("?,");
				}
			ps = connection.prepareStatement("insert into " + table + " values(" + sb.substring(0, sb.length() - 1) + ")");
			}
			//设置不自动提交
			connection.setAutoCommit(false);
			if(datas!= null){ 
				for (int i = 0; i < datas.size(); i++) {
					if(count == 0){
						//设置保存点
						sp = connection.setSavepoint();
					}
					params = datas.get(i);
					if(params != null) {
						//遍历单条数据
						for (int j = 0; j < types.size(); j++) {
								if(types.get(j) == "String") {
									ps.setString(j + 1, (String) params.get(j));
								}
								if(types.get(j) == "Float") {
									ps.setFloat(j + 1, (Float) params.get(j));
								}
								if(types.get(j) == "Integer") {
									ps.setInt(j + 1, (Integer) params.get(j));
								}
								if(types.get(j) == "Date") {
									ps.setTimestamp(j + 1, (Timestamp) params.get(j));
								}
							}
						ps.addBatch();
						newDatas.add(params);
						}
					count++;
					if(count == batchCount) {  //oracle14驱动执行的批量提交只支持19455个参数   数据条数乘于字段数小于32573
						try{
							ps.executeBatch();
						}catch (Exception e) {
							if(batchCount == 1){
								counts++; //错误数据个数
								System.out.println("错误数据：" + params.get(0));
								e.printStackTrace();
							}
							if(batchCount == 19455/types.size()){
								oneDatas.add(newDatas);
							}
							if(batchCount == 1945/types.size()){
								twoDatas.add(newDatas);
							}
							connection.rollback(sp);
						}finally{
							connection.commit();
							ps.clearBatch();
							newDatas = new ArrayList();
							count = 0;
						}
						
					}
					} 
				} 
			ps.executeBatch();
			} catch (SQLException e) { // TODO Auto-generated catch block 
				try {
					if(batchCount == 1){
						System.out.println("错误数据：" + params.get(0));
						e.printStackTrace();
					}
					if(batchCount == 19455/types.size()){
						oneDatas.add(newDatas);
					}
					if(batchCount == 1945/types.size()){
						twoDatas.add(newDatas);
					}
					connection.rollback(sp);
				} catch (SQLException e1) {
				}
				}finally{ 
					newDatas = new ArrayList();
					try {
						connection.commit();
					} catch (SQLException e) {

					} 
					try {
						ps.clearBatch();
					} catch (SQLException e) {

					}
					count = 0;
					this.closeAll();
					if(a){
						a = false;
						for(int i = 0; i < oneDatas.size(); i++){
							if(i == oneDatas.size() - 1){
								b = true;
							}
							List<List> list = oneDatas.get(i);
							execute(list, types, table, 1945/types.size());
						}
						
					}
					if(b){
						b = false;
						for(int i = 0; i < twoDatas.size(); i++){
							List<List> list = twoDatas.get(i);
							execute(list, types, table, 1);
						}
						System.out.println("错误数据总个数：" + counts);
					}
					}
		}
}



import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;

public class csvdao extends BaseDao{
	//table 表名
	//path csv文件路径
	//rowCount 字段数目前只写string类型的
	@SuppressWarnings({ "rawtypes", "unchecked" })
	public void csv(String table, String path, int rowCount) {
		int count = 0; //一共有多少行数据
		int counts = 0; //一共有多少条不符合规则的数据
		int sumcount = 0; //每条数据有多少字段
		String prve = ""; //换行的数据
	    File csv = new File(path);  // CSV文件路径
	    BufferedReader br = null;
	    int sum = 1;
	    try
	    {
	        br = new BufferedReader(new FileReader(csv));
	    } catch (FileNotFoundException e)
	    {
	        e.printStackTrace();
	    }
	    String line = ""; //每行数据
	    String everyLine = ""; //每行数据
	    try {
				List<List> paramss = new ArrayList(); //所有数据
	            List<String> allStr = new ArrayList(); //重新保存每行数据
	            List<String> types = new ArrayList();
	            for(int i = 0; i < rowCount; i++){
	            	types.add("String");
	            }
	            while ((line = br.readLine()) != null)  //读取到的内容给line变量
	            {
	            	count++;
	                everyLine = line;
	                String[] split = everyLine.split("\",\"");
	                if( count == 1) {
	                	sumcount = split.length;
	                	continue;
	                }
	                if(split.length != sumcount){
	                	count--;
	                	prve += everyLine;
	                	if(prve.split("\",\"").length == sumcount){
	                		count++;
	                		if(!"\"".equals(prve.split("\",\"")[sumcount - 1].substring(prve.split("\",\"")[sumcount - 1].length() - 1))){
	                			split = prve.split("\",\"");
	                		}else {
	                			split = prve.split("\",\"");
		                		prve = "";
							}
	                	}else {	
	                		if(prve.split("\",\"").length > sumcount){
	                			if(!"\"".equals(prve.split("\",\"")[sumcount - 1].substring(prve.split("\",\"")[sumcount - 1].length() - 1))){
		                			split = prve.split("\",\"");
		                		}else {
		                			System.out.println("错误信息：" + prve);
		                			counts++;
		                			prve = "";
		                			continue;
								}
		                	}else{
		                		continue;
		                	}
						}	
	                }
	                if(!"\"".equals(split[sumcount - 1].substring(split[sumcount - 1].length() - 1))){
	                	if(prve == null || "".equals(prve)){
	                		prve = everyLine;
	                	}else {
	                		prve += everyLine;
						}
	                	count--;
	                	continue;
	                }
	                for(int i = 0; i < sumcount; i++){
	                	if(i == 0) {
	                		try{
	                			allStr.add(split[i].substring(1, split[i].length())); 
	                		}catch (Exception e) {
	                			e.printStackTrace();
	                			System.out.println("错误信息：" + split[i]+count);
							}
	                		continue;
	                	}
	                	if(i == split.length - 1) {
	                		try{
	                			allStr.add(split[i].substring(0, split[i].length() - 1));
	                		}catch (Exception e) {
	                			e.printStackTrace();
	                			System.out.println("错误信息：" + split[i]+count);
							}
	                		continue;
	                	}
	                	allStr.add(split[i]);
	                }
	                paramss.add(allStr);
	                if(count/800000 == sum){
	                	this.execute(paramss, types, table,19455/types.size());
	                	paramss.clear();
	                	allStr.clear();
	                	sum++;
	                }
	                allStr = new ArrayList();
	            }
	            br.close();
	            System.out.println("错误数据个数counts: " + counts);
	            this.execute(paramss, types, table,19455/types.size());
	    } catch (IOException e)
	    {
	        e.printStackTrace();
	    }
	}
	
	public static void main(String[] args)
	{
		Date date = new Date();
		new csvdao().csv("","",);
		Date date1 = new Date();
		System.out.println(new Date(date1.getTime() - date.getTime()));

	}
}


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323