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flink-monitor
Commit 242dd53b authored by 赵建伟's avatar 赵建伟
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update codes

parent 4a36c0a8
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Showing with 575 additions and 45 deletions
src/main/java/com/gmei/data/monitor/callable/DeviceCallable.java
View file @ 242dd53b
......@@ -16,7 +16,7 @@ import java.util.concurrent.Callable;
* @author sjxuwei
* @since JDK 1.8
*/
public class DeviceCallable implements Callable<DeviceInfo>{
public class DeviceCallable implements Callable<String>{
private Integer userId;
private String inJdbcUrl;
......@@ -26,11 +26,11 @@ public class DeviceCallable implements Callable<DeviceInfo>{
}
@Override
public DeviceInfo call() throws Exception {
public String call() throws Exception {
Connection connection = open();
String deviceId = findDeviceId(userId, connection);
close(connection);
return new DeviceInfo(deviceId);
return deviceId;
}
private Connection open() throws Exception {
......
src/main/java/com/gmei/data/monitor/operator/PortraitMonitorShdOperator.java
View file @ 242dd53b
......@@ -5,16 +5,12 @@ import com.alibaba.fastjson.JSONObject;
import com.gmei.data.monitor.bean.TblMonitorPortraitShd;
import com.gmei.data.monitor.sink.PortraitShdMysqlSink;
import com.gmei.data.monitor.utils.DateUtils;
import com.gmei.data.monitor.utils.MysqlUtils;
import org.apache.commons.lang3.StringUtils;
import org.apache.flink.api.common.functions.FilterFunction;
import org.apache.flink.api.common.functions.MapFunction;
import org.apache.flink.api.java.tuple.Tuple;
import org.apache.flink.api.java.tuple.Tuple2;
import org.apache.flink.streaming.api.datastream.DataStream;
import org.apache.flink.streaming.api.datastream.KeyedStream;
import org.apache.flink.streaming.api.datastream.SingleOutputStreamOperator;
import org.apache.flink.streaming.api.datastream.WindowedStream;
import org.apache.flink.streaming.api.datastream.*;
import org.apache.flink.streaming.api.functions.timestamps.AscendingTimestampExtractor;
import org.apache.flink.streaming.api.functions.windowing.ProcessWindowFunction;
import org.apache.flink.streaming.api.windowing.time.Time;
......@@ -25,6 +21,7 @@ import org.joda.time.format.ISODateTimeFormat;
import java.util.Arrays;
import java.util.Date;
import java.util.concurrent.TimeUnit;
/**
* @ClassName PortraitMonitorShdOperator
......@@ -42,9 +39,6 @@ public class PortraitMonitorShdOperator implements BaseOperator{
private int maxRetry;
private long retryInteral;
private int parallelism;
private transient MysqlUtils mysqlUtils = new MysqlUtils();
//private transient SimpleCacheService<Integer, DeviceInfo> deviceCallableSimpleCacheService
// = deviceCallableSimpleCacheService = new SimpleCacheService<>(2000, 24);
public static final DateTimeFormatter dateTimeFormat = ISODateTimeFormat.dateTime();
public static final DateTimeFormatter dateTimeNoMillisFormat = ISODateTimeFormat.dateTimeNoMillis();
......@@ -72,7 +66,7 @@ public class PortraitMonitorShdOperator implements BaseOperator{
public JSONObject map(String value) throws Exception {
return JSONObject.parseObject(value);
}
});
}).uid("map01");
//map01.print();
SingleOutputStreamOperator filter01 = map01.filter(new FilterFunction<JSONObject>() {
@Override
......@@ -136,8 +130,14 @@ public class PortraitMonitorShdOperator implements BaseOperator{
}
return false;
}
});
SingleOutputStreamOperator filter02 = filter01.filter(new FilterFunction<JSONObject>() {
}).uid("filter01");
DataStream<JSONObject> joinZhengxingStream = AsyncDataStream
.unorderedWait(filter01, new RichAsyncFunctionOperator(inJdbcUrl), 1, TimeUnit.MINUTES, 1000)
.uid("joinZhengxingStream")
.setParallelism(parallelism);
SingleOutputStreamOperator filter02 = joinZhengxingStream.filter(new FilterFunction<JSONObject>() {
@Override
public boolean filter(JSONObject jsonObject) throws Exception {
try {
......@@ -177,30 +177,11 @@ public class PortraitMonitorShdOperator implements BaseOperator{
if (Arrays.asList(interact).contains(appAction)) {
Integer userId = appObject.getInteger("user_id");
if(userId != null){
// String sql = String.format(
// "select device_id from statistic_device where id = (SELECT max(device_id) FROM statistic_device_user WHERE user_id = %d)"
// ,userId);
// String deviceId = "";
// try{
// Connection connection = DriverManager.getConnection(inJdbcUrl);
// PreparedStatement ps = connection.prepareStatement(sql);
// ResultSet resultSet = ps.executeQuery();
// while (resultSet.next()) {
// deviceId = (String) resultSet.getObject(1);
// }
// resultSet.close();
// ps.close();
// connection.close();
// }catch (Exception e){
// e.printStackTrace();
// }
//String deviceInfo = (String) mysqlUtils.getSimpleResult(inJdbcUrl,sql);
// DeviceInfo deviceInfo = deviceCallableSimpleCacheService.getValue(userId, new DeviceCallable(userId, inJdbcUrl));
// deviceCallableSimpleCacheService.putValue(userId,deviceInfo);
// if(StringUtils.isNotBlank(deviceId)){
String device_id = appObject.getString("device_id");
if(StringUtils.isNotBlank(device_id)){
jsonObject.put("statistics_action", appAction);
return true;
// }
}
}
}
}
......@@ -223,12 +204,11 @@ public class PortraitMonitorShdOperator implements BaseOperator{
}
return false;
}
});
}).uid("filter02");
SingleOutputStreamOperator singleOutputStreamOperator = filter02.assignTimestampsAndWatermarks(new AscendingTimestampExtractor<JSONObject>() {
@Override
public long extractAscendingTimestamp(JSONObject jsonObject) {
long logTime = 0;
JSONObject sysObject = jsonObject.getJSONObject("SYS");
if (null != sysObject) {
String action = sysObject.getString("action");
......@@ -299,7 +279,7 @@ public class PortraitMonitorShdOperator implements BaseOperator{
}
return logTime;
}
});
}).uid("singleOutputStreamOperator");
//filter01.print();
SingleOutputStreamOperator map02 = singleOutputStreamOperator.map(new MapFunction<JSONObject, Tuple2<String, JSONObject>>() {
@Override
......@@ -307,7 +287,7 @@ public class PortraitMonitorShdOperator implements BaseOperator{
String statisticsAction = jsonObject.getString("statistics_action");
return new Tuple2<String, JSONObject>(statisticsAction, jsonObject);
}
});
}).uid("map02");
//map02.print();
KeyedStream keyedStream = map02.keyBy(0);
//keyedStream.print();
......@@ -326,9 +306,10 @@ public class PortraitMonitorShdOperator implements BaseOperator{
out.collect(tblMonitorPortraitShd);
}
}
});
}).uid("process");
process
.addSink(new PortraitShdMysqlSink(outJdbcUrl,maxRetry,retryInteral))
.setParallelism(parallelism);
.setParallelism(parallelism)
.uid("sink-result-shd");
}
}
src/main/java/com/gmei/data/monitor/operator/PortraitMonitorSucOperator.java
View file @ 242dd53b
......@@ -79,7 +79,7 @@ public class PortraitMonitorSucOperator implements BaseOperator{
return new GmPortraitResult();
}
}
});
}).uid("map");
//map.print();
SingleOutputStreamOperator filter = map.filter(new FilterFunction<GmPortraitResult>() {
@Override
......@@ -90,7 +90,7 @@ public class PortraitMonitorSucOperator implements BaseOperator{
}
return true;
}
});
}).uid("filter");
//filter.print();
filter
.keyBy("event")
......@@ -110,6 +110,7 @@ public class PortraitMonitorSucOperator implements BaseOperator{
}
})
.addSink(new PortraitSucMysqlSink(outJdbcUrl,maxRetry,retryInteral))
.setParallelism(parallelism);
.setParallelism(parallelism)
.uid("sink-result-suc");
}
}
src/main/java/com/gmei/data/monitor/operator/RichAsyncFunctionOperator.java 0 → 100644
View file @ 242dd53b
package com.gmei.data.monitor.operator;
import com.alibaba.fastjson.JSONObject;
import com.gmei.data.monitor.cache.SimpleCacheService;
import com.gmei.data.monitor.callable.DeviceCallable;
import org.apache.flink.configuration.Configuration;
import org.apache.flink.streaming.api.functions.async.ResultFuture;
import org.apache.flink.streaming.api.functions.async.RichAsyncFunction;
import java.util.Arrays;
import java.util.Collections;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Future;
import static java.util.concurrent.Executors.newFixedThreadPool;
public class RichAsyncFunctionOperator extends RichAsyncFunction<JSONObject, JSONObject> {
public static final SimpleCacheService<Integer, String> deviceCache = new SimpleCacheService<Integer, String>(2000, 24);
public String inJdbcUrl;
public RichAsyncFunctionOperator(String inJdbcUrl) {
this.inJdbcUrl = inJdbcUrl;
}
@Override
public void open(Configuration parameters) throws Exception {
super.open(parameters);
initTable();
}
@Override
public void asyncInvoke(JSONObject jsonObject, ResultFuture<JSONObject> resultFuture) throws Exception {
JSONObject appObject = jsonObject.getJSONObject("APP");
if (null != appObject) {
String appAction = appObject.getString("action");
if (null != appAction) {
String[] interact = {"like", "comment", "collect"};
if (Arrays.asList(interact).contains(appAction)) {
Integer userId = appObject.getInteger("user_id");
if (userId != null) {
String deviceId = deviceCache.getValue(userId, new DeviceCallable(userId, inJdbcUrl));
if (deviceId != null) {
appObject.put("device_id",deviceId);
} else {
appObject.put("device_id","");
}
resultFuture.complete(Collections.singleton(jsonObject));
}
}
}
}
}
public void initTable() throws Exception {
ExecutorService es = newFixedThreadPool(10);
Future deviceFuture = es.submit(new DeviceCallable(1, inJdbcUrl));
String deviceId = (String)deviceFuture.get();
deviceCache.putValue(1,deviceId);
}
}
src/main/java/com/gmei/data/monitor/test/PortraitMonitorShdOperatorBak.java 0 → 100644
View file @ 242dd53b
package com.gmei.data.monitor.test;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import com.gmei.data.monitor.bean.TblMonitorPortraitShd;
import com.gmei.data.monitor.common.Constants;
import com.gmei.data.monitor.operator.BaseOperator;
import com.gmei.data.monitor.sink.PortraitShdMysqlSink;
import com.gmei.data.monitor.utils.DateUtils;
import org.apache.commons.lang3.StringUtils;
import org.apache.flink.api.common.functions.FilterFunction;
import org.apache.flink.api.common.functions.MapFunction;
import org.apache.flink.api.java.tuple.Tuple;
import org.apache.flink.api.java.tuple.Tuple2;
import org.apache.flink.streaming.api.datastream.DataStream;
import org.apache.flink.streaming.api.datastream.KeyedStream;
import org.apache.flink.streaming.api.datastream.SingleOutputStreamOperator;
import org.apache.flink.streaming.api.datastream.WindowedStream;
import org.apache.flink.streaming.api.functions.timestamps.AscendingTimestampExtractor;
import org.apache.flink.streaming.api.functions.windowing.ProcessWindowFunction;
import org.apache.flink.streaming.api.windowing.time.Time;
import org.apache.flink.streaming.api.windowing.windows.TimeWindow;
import org.apache.flink.util.Collector;
import org.joda.time.format.DateTimeFormatter;
import org.joda.time.format.ISODateTimeFormat;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.util.Arrays;
import java.util.Date;
/**
* @ClassName PortraitMonitorShdOperator
* @Description: 用户画像计划打点数监控
* @Author zhaojianwei
* @Date 2020/3/18
* @Version V1.0
**/
public class PortraitMonitorShdOperatorBak implements BaseOperator {
private DataStream dataStream;
private int windownSize;
private int slideSize;
private String inJdbcUrl;
private String outJdbcUrl;
private int maxRetry;
private long retryInteral;
private int parallelism;
//private static final MysqlUtils mysqlUtils = new MysqlUtils();
// private SimpleCacheService<Integer, DeviceInfo> deviceCallableSimpleCacheService
// = deviceCallableSimpleCacheService = new SimpleCacheService<>(2000, 24);
public static final DateTimeFormatter dateTimeFormat = ISODateTimeFormat.dateTime();
public static final DateTimeFormatter dateTimeNoMillisFormat = ISODateTimeFormat.dateTimeNoMillis();
public PortraitMonitorShdOperatorBak(DataStream dataStream, int windownSize, int slideSize, String inJdbcUrl, String outJdbcUrl,
int maxRetry, long retryInteral, int parallelism) {
this.dataStream = dataStream;
this.windownSize = windownSize;
this.slideSize = slideSize;
this.inJdbcUrl = inJdbcUrl;
this.outJdbcUrl = outJdbcUrl;
this.maxRetry = maxRetry;
this.retryInteral = retryInteral;
this.parallelism = parallelism;
}
@Override
public void run() {
SingleOutputStreamOperator map01 = dataStream.filter(new FilterFunction<String>() {
@Override
public boolean filter(String value) throws Exception {
return JSON.isValid(value);
}
}).map(new MapFunction<String, JSONObject>() {
@Override
public JSONObject map(String value) throws Exception {
return JSONObject.parseObject(value);
}
}).uid("map01");
//map01.print();
SingleOutputStreamOperator filter01 = map01.filter(new FilterFunction<JSONObject>() {
@Override
public boolean filter(JSONObject jsonObject) throws Exception {
JSONObject sysObject = jsonObject.getJSONObject("SYS");
JSONObject appObject = jsonObject.getJSONObject("APP");
if(sysObject != null && appObject != null && sysObject.getString("action") != null){
if("/api/private_conversation/".equals(sysObject.getString("action")) && appObject.get("msg_id") != null){
if(sysObject.getLong("errno") == 0 && appObject.getLong("antispam") == 0 && appObject.get("msg_id") != null
&& appObject.getInteger("is_system") == 0 && appObject.getString("referrer").equals("welfare_detail")){
return true;
}
}else if("/api/initiate/interest_record".equals(sysObject.getString("action")) && appObject.get("content") != null){
return true;
}else if(appObject.get("info") != null && appObject.get("event_type") != null){
return true;
}else if(appObject.get("action") != null){
return true;
}else if("/api/one_image/share/v3".equals(sysObject.getString("action")) && appObject.get("ai_labels") != null){
return true;
}else if("/gm_ai/face_app/test_skin".equals(sysObject.getString("action")) && appObject.get("ai_labels") != null){
return true;
}else{
return false;
}
}else if(jsonObject.get("type") != null && jsonObject.get("device") != null && jsonObject.get("params") != null){
String[] arr = {"输入", "发现", "联想", "历史"};
if("do_search".equals(jsonObject.getString("type")) && Arrays.asList(arr).contains(jsonObject.getJSONObject("params").getString("input_type"))){
return true;
}else if("on_click_button".equals(jsonObject.getString("type")) && jsonObject.get("params") != null){
JSONObject paramObject = jsonObject.getJSONObject("params");
if(paramObject.get("page_name") != null && paramObject.get("button_name") != null && paramObject.get("extra_param") != null ){
if("page_choose_interest".equals(paramObject.getString("page_name")) && "next".equals(paramObject.getString("button_name"))){
return false;
}
}
}else if("on_click_card".equals(jsonObject.getString("type")) && jsonObject.getJSONObject("params").get("card_content_type") != null ){
String[] array = {"diary","user_post","qa"};
if(Arrays.asList(array).contains(jsonObject.getJSONObject("params").getString("card_content_type"))){
if(jsonObject.getJSONObject("params").get("card_id") != null){
return true;
}else{
return false;
}
}
}else if("goto_welfare_detail".equals(jsonObject.getString("type")) && jsonObject.getJSONObject("params").get("service_id") != null){
if(jsonObject.getJSONObject("params").get("service_id") != null){
return true;
}else{
return false;
}
}else if("home_click_section".equals(jsonObject.getString("type")) && jsonObject.getJSONObject("params").get("icon_name") != null){
if(jsonObject.getJSONObject("params").get("icon_name") != null){
return true;
}else{
return false;
}
}else {
return false;
}
}
return false;
}
}).uid("filter01");
SingleOutputStreamOperator filter02 = filter01.filter(new FilterFunction<JSONObject>() {
@Override
public boolean filter(JSONObject jsonObject) throws Exception {
try {
JSONObject sysObject = jsonObject.getJSONObject("SYS");
if (null != sysObject) {
String action = sysObject.getString("action");
if (null != action) {
if ("/api/private_conversation/".equals(action)
//|| "/api/initiate/interest_record".equals(action)
//|| "/api/one_image/share/v3".equals(action)
//|| "/gm_ai/face_app/test_skin".equals(action)
) {
jsonObject.put("statistics_action", action);
return true;
}
}
}
JSONObject appObject = jsonObject.getJSONObject("APP");
if (null != appObject) {
String eventType = appObject.getString("event_type");
if (null != eventType) {
if ("validate_order".equals(eventType)
|| "paid_success".equals(eventType)
|| "add_shopcart".equals(eventType)) {
jsonObject.put("statistics_action", eventType);
return true;
}
}
String appAction = appObject.getString("action");
if (null != appAction) {
// String[] edits = {"create", "update", "answer"};
// if (Arrays.asList(edits).contains(appAction)) {
// jsonObject.put("statistics_action", appAction);
// return true;
// }
String[] interact = {"like", "comment", "collect"};
if (Arrays.asList(interact).contains(appAction)) {
Integer userId = appObject.getInteger("user_id");
if(userId != null){
String sql = String.format(
"select device_id from statistic_device where id = (SELECT max(device_id) FROM statistic_device_user WHERE user_id = %d)"
,userId);
// String deviceId = "";
// try{
// Connection connection = DriverManager.getConnection(inJdbcUrl);
// PreparedStatement ps = connection.prepareStatement(sql);
// ResultSet resultSet = ps.executeQuery();
// while (resultSet.next()) {
// deviceId = (String) resultSet.getObject(1);
// }
// resultSet.close();
// ps.close();
// connection.close();
// }catch (Exception e){
// e.printStackTrace();
// }
//String deviceId = (String) new PortraitMonitorShdOperator.MysqlUtils().getSimpleResult(inJdbcUrl,sql);
//String deviceId = (String) mysqlUtils.getSimpleResult();
//DeviceInfo deviceInfo = deviceCallableSimpleCacheService.getValue(userId, new DeviceCallable(userId, inJdbcUrl));
// deviceCallableSimpleCacheService.putValue(userId,deviceInfo);
// if(deviceInfo != null && StringUtils.isNotBlank(deviceInfo.getDeviceId())){
jsonObject.put("statistics_action", appAction);
return true;
// }
}
}
}
}
String type = jsonObject.getString("type");
String device = jsonObject.getString("device");
if (null != type && null != device) {
if ("do_search".equals(type)
|| "goto_welfare_detail".equals(type)
|| "on_click_card".equals(type)
//|| "home_click_section".equals(type)
) {
jsonObject.put("statistics_action", type);
return true;
}
}
} catch (Exception e) {
e.printStackTrace();
return false;
}
return false;
}
}).uid("filter02");
SingleOutputStreamOperator singleOutputStreamOperator = filter02.assignTimestampsAndWatermarks(new AscendingTimestampExtractor<JSONObject>() {
@Override
public long extractAscendingTimestamp(JSONObject jsonObject) {
long logTime = 0;
JSONObject sysObject = jsonObject.getJSONObject("SYS");
if (null != sysObject) {
String action = sysObject.getString("action");
if (null != action) {
if ("/api/private_conversation/".equals(action)
//|| "/api/initiate/interest_record".equals(action)
//|| "/api/one_image/share/v3".equals(action)
//|| "/gm_ai/face_app/test_skin".equals(action)
) {
JSONObject appObject = jsonObject.getJSONObject("APP");
if (null != appObject) {
Long time = appObject.getLong("time");
if (null != time && time != 0) {
logTime = time;
}
}
}
}
}
JSONObject appObject = jsonObject.getJSONObject("APP");
if (null != appObject) {
String eventType = appObject.getString("event_type");
if (null != eventType) {
if ("validate_order".equals(eventType)
|| "paid_success".equals(eventType)
|| "add_shopcart".equals(eventType)) {
String backendEventTime = jsonObject.getString("TIME");
if (StringUtils.isNotBlank(backendEventTime)) {
try {
logTime = dateTimeFormat.parseMillis(backendEventTime);
} catch (IllegalArgumentException e) {
try {
logTime = dateTimeNoMillisFormat.parseMillis(backendEventTime);
} catch (IllegalArgumentException e2) {
e2.printStackTrace();
}
}
}
}
}
String appAction = appObject.getString("action");
if (null != appAction) {
// String[] edits = {"create", "update", "answer"};
// if (Arrays.asList(edits).contains(appAction)) {
// jsonObject.put("statistics_action", appAction);
// return true;
// }
String[] interact = {"like", "comment", "collect"};
if (Arrays.asList(interact).contains(appAction)) {
String timestamp = appObject.getString("timestamp");
logTime = Math.round(Double.valueOf(timestamp) * 1000);
}
}
}
String type = jsonObject.getString("type");
String device = jsonObject.getString("device");
if (null != type && null != device) {
if ("do_search".equals(type)
|| "goto_welfare_detail".equals(type)
|| "on_click_card".equals(type)
//|| "home_click_section".equals(type)
) {
String maidianEventTime = jsonObject.getString("create_at");
if (StringUtils.isNotBlank(maidianEventTime)) {
logTime = Long.valueOf(maidianEventTime) * 1000;
}
}
}
return logTime;
}
}).uid("singleOutputStreamOperator");
//filter01.print();
SingleOutputStreamOperator map02 = singleOutputStreamOperator.map(new MapFunction<JSONObject, Tuple2<String, JSONObject>>() {
@Override
public Tuple2<String, JSONObject> map(JSONObject jsonObject) throws Exception {
String statisticsAction = jsonObject.getString("statistics_action");
return new Tuple2<String, JSONObject>(statisticsAction, jsonObject);
}
}).uid("map02");
//map02.print();
KeyedStream keyedStream = map02.keyBy(0);
//keyedStream.print();
WindowedStream windowedStream = keyedStream.timeWindow(Time.seconds(windownSize), Time.seconds(slideSize));
SingleOutputStreamOperator process = windowedStream.process(new ProcessWindowFunction<Tuple2<String, JSONObject>, TblMonitorPortraitShd, Tuple, TimeWindow>() {
@Override
public void process(Tuple key, Context context, Iterable<Tuple2<String, JSONObject>> elements, Collector<TblMonitorPortraitShd> out) {
Integer count = 0;
Date date = new Date();
for (Tuple2<String, JSONObject> tuple2 : elements) {
count++;
}
if(count > 0){
String currentTimeStr = DateUtils.getCurrentTimeStr(date);
TblMonitorPortraitShd tblMonitorPortraitShd = new TblMonitorPortraitShd(key.getField(0), count, currentTimeStr);
out.collect(tblMonitorPortraitShd);
}
}
}).uid("process");
process
.addSink(new PortraitShdMysqlSink(outJdbcUrl,maxRetry,retryInteral))
.setParallelism(parallelism)
.uid("sink-result-shd");
}
static class MysqlUtils{
public MysqlUtils() {
try {
Class.forName(Constants.MYSQL_DRIVER_CLASS);
} catch (Exception e) {
e.printStackTrace();
}
}
public Object getSimpleResult(String jdbcUrl,String sql){
Object rs = "";
try{
Connection connection = DriverManager.getConnection(jdbcUrl);
PreparedStatement ps = connection.prepareStatement(sql);
ResultSet resultSet = ps.executeQuery();
while (resultSet.next()) {
rs = resultSet.getObject(1);
}
resultSet.close();
ps.close();
connection.close();
}catch (Exception e){
e.printStackTrace();
}
return rs;
}
}
}
src/main/java/com/gmei/data/monitor/utils/MysqlUtil.java 0 → 100644
View file @ 242dd53b
package com.gmei.data.monitor.utils;
import java.sql.*;
import java.util.List;
/**
* ClassName: MysqlJdbcBl
* Function:
* Reason: 单例模式的数据下发jdbc工具
* Date: 2019/12/7 上午11:01
*
* @author liuzhe
* @since JDK 1.8
*/
public class MysqlUtil {
private volatile static MysqlUtil mysqlJdbcBl = null;
private String driver = "com.mysql.jdbc.Driver";
private String url;
private Connection conn;
private MysqlUtil(String url) {
this.url = url;
}
public static MysqlUtil getInstance(String url) {
if (mysqlJdbcBl == null) {
synchronized (MysqlUtil.class) {
if(mysqlJdbcBl == null) {
mysqlJdbcBl = new MysqlUtil(url);
}
}
}
return mysqlJdbcBl;
}
public Connection getConnection() {
try {
Class.forName(driver);
if(conn == null || conn.isClosed()) {
conn = DriverManager.getConnection(url);
}
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (SQLException e) {
e.printStackTrace();
}
return conn;
}
public void update(String sql, List<Object> params) throws SQLException {
PreparedStatement ps = null;
try {
ps = conn.prepareStatement(sql);
if (params != null && params.size() > 0) {
for (int i = 0; i < params.size(); i++) {
ps.setObject(i + 1, params.get(i));
}
}
ps.executeUpdate();
} catch (SQLException e) {
e.printStackTrace();
} finally {
ps.close();
}
}
public void insert(String sql) throws SQLException {
Statement st = null;
try {
st = conn.createStatement();
st.executeUpdate(sql);
} catch (SQLException e) {
e.printStackTrace();
} finally {
st.close();
}
}
public ResultSet find(String sql) {
if(conn == null){
conn = getConnection();
}
ResultSet rs = null;
Statement st = null;
try {
st = conn.createStatement();
rs = st.executeQuery(sql);
} catch (SQLException e) {
e.printStackTrace();
}
return rs;
}
public void close(Connection con, Statement st, ResultSet rs) {
if (rs != null) {
try {
rs.close();
} catch (SQLException e) {
e.printStackTrace();
}
if (st != null) {
try {
st.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
if (con != null) {
try {
con.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
}
}
}
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