学习使用InfluxDB遇到的错误，暂时没找到解决办法，求大神帮忙看看

使用Java操作时序数据库influxdb，结果报错，求大神看看

org.influxdb.InfluxDBIOException: java.net.ConnectException: Failed to connect to /127.0.0.1:8086

	at org.influxdb.impl.InfluxDBImpl.execute(InfluxDBImpl.java:612)
	at org.influxdb.impl.InfluxDBImpl.write(InfluxDBImpl.java:356)
	at org.influxdb.impl.InfluxDBImpl.write(InfluxDBImpl.java:331)
	at com.learn.influxdb.test.InfluxDBConnect.insert(InfluxDBConnect.java:80)
	at com.learn.influxdb.test.InfluxDBTest.testInsert(InfluxDBTest.java:76)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
	at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
	at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
	at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
	at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
	at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
Caused by: java.net.ConnectException: Failed to connect to /127.0.0.1:8086
	at okhttp3.internal.connection.RealConnection.connectSocket(RealConnection.java:242)
	at okhttp3.internal.connection.RealConnection.connect(RealConnection.java:160)
	at okhttp3.internal.connection.StreamAllocation.findConnection(StreamAllocation.java:257)
	at okhttp3.internal.connection.StreamAllocation.findHealthyConnection(StreamAllocation.java:135)
	at okhttp3.internal.connection.StreamAllocation.newStream(StreamAllocation.java:114)
	at okhttp3.internal.connection.ConnectInterceptor.intercept(ConnectInterceptor.java:42)
	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147)
	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121)
	at okhttp3.internal.cache.CacheInterceptor.intercept(CacheInterceptor.java:93)
	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147)
	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121)
	at okhttp3.internal.http.BridgeInterceptor.intercept(BridgeInterceptor.java:93)
	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147)
	at okhttp3.internal.http.RetryAndFollowUpInterceptor.intercept(RetryAndFollowUpInterceptor.java:126)
	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147)
	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121)
	at org.influxdb.impl.GzipRequestInterceptor.intercept(GzipRequestInterceptor.java:42)
	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147)
	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121)
	at okhttp3.logging.HttpLoggingInterceptor.intercept(HttpLoggingInterceptor.java:144)
	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147)
	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121)
	at okhttp3.RealCall.getResponseWithInterceptorChain(RealCall.java:200)
	at okhttp3.RealCall.execute(RealCall.java:77)
	at retrofit2.OkHttpCall.execute(OkHttpCall.java:180)
	at org.influxdb.impl.InfluxDBImpl.execute(InfluxDBImpl.java:604)
	... 27 more
Caused by: java.net.ConnectException: Connection refused: connect
	at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
	at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:85)
	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
	at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
	at java.net.Socket.connect(Socket.java:589)
	at okhttp3.internal.platform.Platform.connectSocket(Platform.java:129)
	at okhttp3.internal.connection.RealConnection.connectSocket(RealConnection.java:240)
	... 52 more

代码如下：

package com.learn.influxdb.test;

import java.util.Map;

import org.influxdb.InfluxDB;
import org.influxdb.InfluxDBFactory;
import org.influxdb.dto.Point;
import org.influxdb.dto.Point.Builder;
import org.influxdb.dto.Query;
import org.influxdb.dto.QueryResult;

/**
 * 时序数据库 InfluxDB 连接
 */
public class InfluxDBConnect {

	private String username;// 用户名
	private String password;// 密码
	private String openurl;// 连接地址
	private String database;// 数据库

	private InfluxDB influxDB;

	public InfluxDBConnect(String username, String password, String openurl,
			String database) {
		this.username = username;
		this.password = password;
		this.openurl = openurl;
		this.database = database;
	}

	/** 连接时序数据库；获得InfluxDB **/
	public InfluxDB influxDbBuild() {
		if (influxDB == null) {
			influxDB = InfluxDBFactory.connect(openurl, username, password);
			 //influxDB.createDatabase(database);

		}
		return influxDB;
	}

	/**
	 * 设置数据保存策略 defalut 策略名 /database 数据库名/ 30d 数据保存时限30天/ 1 副本个数为1/ 结尾DEFAULT
	 * 表示 设为默认的策略
	 */
	public void createRetentionPolicy() {
		String command = String
				.format("CREATE RETENTION POLICY \"%s\" ON \"%s\" DURATION %s REPLICATION %s DEFAULT",
						"defalut", database, "30d", 1);
		this.query(command);
	}

	/**
	 * 查询
	 * @param command
	 * @return
	 */
	public QueryResult query(String command) {
		return influxDB.query(new Query(command, database));
	}

	/**
	 * 插入
	 * @param measurement  表
	 * @param tags   标签
	 * @param fields 字段
	 */
	public void insert(String measurement, Map tags,
			Map fields) {
		Builder builder = Point.measurement(measurement);
		builder.tag(tags);
		builder.fields(fields);

		influxDB.write(database, "", builder.build());
	}

	/**
	 * 删除
	 * @param command 删除语句
	 * @return 返回错误信息
	 */
	public String deleteMeasurementData(String command) {
		QueryResult result = influxDB.query(new Query(command, database));
		return result.getError();
	}

	/**
	 * 创建数据库
	 * @param dbName
	 */
	public void createDB(String dbName) {
		influxDB.createDatabase(dbName);
	}

	/**
	 * 删除数据库
	 * @param dbName
	 */
	public void deleteDB(String dbName) {
		influxDB.deleteDatabase(dbName);
	}

	public String getUsername() {
		return username;
	}

	public void setUsername(String username) {
		this.username = username;
	}

	public String getPassword() {
		return password;
	}

	public void setPassword(String password) {
		this.password = password;
	}

	public String getOpenurl() {
		return openurl;
	}

	public void setOpenurl(String openurl) {
		this.openurl = openurl;
	}

	public void setDatabase(String database) {
		this.database = database;
	}
}

package com.learn.influxdb.test;

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 com.learn.influxdb.domain.CodeInfo;
import junit.framework.Assert;

import org.influxdb.dto.QueryResult;
import org.influxdb.dto.QueryResult.Result;
import org.influxdb.dto.QueryResult.Series;
import org.junit.Before;
import org.junit.Test;
import org.springframework.beans.BeanWrapperImpl;

public class InfluxDBTest {

	private InfluxDBConnect influxDBConnect;
	private String username = "zg";// 用户名
	private String password = "123";// 密码
	private String openurl = "http://127.0.0.1:8086";// 连接地址
	private String database = "test_db";// 数据库
	private String measurement = "sys_code";

	//http://192.168.80.130:8086/query?q=CREATE+DATABASE+%22testDB%22&db=testDB
	
	@Before
	public void setUp() {
		// 创建 连接
		influxDBConnect = new InfluxDBConnect(username, password, openurl, database);

		influxDBConnect.influxDbBuild();

		//influxDBConnect.createRetentionPolicy();
//		 influxDBConnect.deleteDB("sms");
//		 influxDB.createDB(database);
	}

	@Test
	public void testInsert() {// 测试数据插入
		Map tags = new HashMap();
		Map fields = new HashMap();
		List list = new ArrayList();
		SimpleDateFormat formatter = new SimpleDateFormat("HH:mm");
		for (int i = 40; i <= 60; i++) {
			CodeInfo info1 = new CodeInfo();
			info1.setId(i);
			info1.setFlag(1);
			info1.setName("BANKS");
			info1.setCode("ABC");
			info1.setDescr("中国农业银行");
			info1.setDescrE("ABC");
			info1.setTime(new Date().getTime());
			info1.setCreatedBy("system");
			info1.setCreatedAt(formatter.format(new Date()));
			list.add(info1);
		}
 
		for (CodeInfo info : list) {
			tags.put("TAG_CODE", info.getCode());
			tags.put("TAG_NAME", info.getName());
			
			fields.put("ID", info.getId());
			fields.put("FLAG", info.getFlag());
			fields.put("NAME", info.getName());
			fields.put("CODE", info.getCode());
			fields.put("DESCR", info.getDescr());
			fields.put("DESCR_E", info.getDescrE());
			fields.put("CREATED_BY", info.getCreatedBy());
			fields.put("CREATED_AT", info.getCreatedAt());
			fields.put("TIME", info.getTime());
			influxDBConnect.insert(measurement, tags, fields);
		}
	}

这里我的数据库安装在本地的centos7上，连接地址应该是127.0.0.1:8086没错吧？求大神看看错误出在哪

解决方法：
好了这里是我没想通，Linux上的这个localhost让我误解了

这个实在centos上的localhost，而我的Java代码是在windows上写的，所以两个localhost有区别，将这个localhost换成服务器地址就ok了。