maven项目出现中数据库Communications link failure

[gwd2016]

错误:
Build error for /eid-generator/pom.xml; org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.mybatis.generator:mybatis-generator-maven-plugin:1.3.2:generate (Generate MyBatis Artifacts) on project eid-generator: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.

POM.xml代码:

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
	<modelVersion>4.0.0</modelVersion>
	<parent>
		<groupId>eid</groupId>
		<artifactId>eid</artifactId>
		<version>1.0.0</version>
	</parent>
	<groupId>eid-generator</groupId>
	<artifactId>eid-generator</artifactId>
	<packaging>jar</packaging>
	<name>eid-generator</name>
	<description>****平台-源码生成工具</description>

	<dependencies>
		<dependency>
			<groupId>mysql</groupId>
			<artifactId>mysql-connector-java</artifactId>
			<version>${version.mysql}</version>
		</dependency>
		<dependency>
			<groupId>org.mybatis.generator</groupId>
			<artifactId>mybatis-generator-core</artifactId>
			<version>${version.mybatis-generator}</version>
		</dependency>
		<dependency>
			<groupId>org.mybatis</groupId>
			<artifactId>mybatis</artifactId>
			<version>${version.mybatis}</version>
		</dependency>
	</dependencies>

	<build>
		<resources>
			<resource>
				<directory>src/main/java</directory>
				<includes>
					<include>**/*Mapper.xml</include>
				</includes>
			</resource>
			<resource>
				<directory>src/main/resources</directory>
				<includes>
					<include>**/*.xml</include>
					<include>**/*.properties</include>
				</includes>
				<filtering>true</filtering>
			</resource>
		</resources>
		<plugins>
			<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-compiler-plugin</artifactId>
				<version>2.3.2</version>
				<configuration>
					<source>${version.jdk}</source>
					<target>${version.jdk}</target>
				</configuration>
			</plugin>
			<plugin>
				<groupId>org.mybatis.generator</groupId>
				<artifactId>mybatis-generator-maven-plugin</artifactId>
				<version>${version.mybatis-generator}</version>
				<configuration>
					<configurationFile>src/main/resources/generatorConfig.xml</configurationFile>
					<verbose>true</verbose>
					<overwrite>true</overwrite>
				</configuration>
				<executions>
					<execution>
						<id>Generate MyBatis Artifacts</id>
						<goals>
							<goal>generate</goal>
						</goals>
					</execution>
				</executions>
				<dependencies>
					<dependency>
						<groupId>org.mybatis.generator</groupId>
						<artifactId>mybatis-generator-core</artifactId>
						<version>${version.mybatis-generator}</version>
					</dependency>
					<dependency>
						<groupId>mysql</groupId>
						<artifactId>mysql-connector-java</artifactId>
						<version>${version.mysql}</version>
					</dependency>
					<dependency>
						<groupId>org.mybatis</groupId>
						<artifactId>mybatis</artifactId>
						<version>${version.mybatis}</version>
					</dependency>
				</dependencies>
			</plugin>
		</plugins>
		<pluginManagement>
			<plugins>
				<plugin>
					<groupId>org.eclipse.m2e</groupId>
					<artifactId>lifecycle-mapping</artifactId>
					<version>1.0.0</version>
					<configuration>
						<lifecycleMappingMetadata>
							<pluginExecutions>
								copy-dependency plugin
								<pluginExecution>
									<pluginExecutionFilter>
										<groupId>org.apache.maven.plugins</groupId>
										<artifactId>maven-dependency-plugin</artifactId>
										<versionRange>[1.0.0,)</versionRange>
										<goals>
											<goal>copy-dependencies</goal>
											<goal>resources</goal>
										</goals>
									</pluginExecutionFilter>
									<action>
										<ignore />
									</action>
								</pluginExecution>
								<pluginExecution>
									<pluginExecutionFilter>
										<groupId>org.mybatis.generator</groupId>
										<artifactId>mybatis-generator-maven-plugin</artifactId>
										<!-- 忽略该版本及其以上的版本的检查 -->
										<versionRange>[${version.mybatis-generator},)</versionRange>
										<goals>
											<goal>generate</goal>
										</goals>
									</pluginExecutionFilter>
									<action>
										<ignore />
									</action>
								</pluginExecution>
							</pluginExecutions>
						</lifecycleMappingMetadata>
					</configuration>
				</plugin>
			</plugins>
		</pluginManagement>
	</build>
</project>

generatorConfig.xml代码:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE generatorConfiguration 
    PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN" 
    "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">
<generatorConfiguration>
	<classPathEntry
		location="G:\java\eclipse-jee-indigo-SR2-win32-x86_64\apache-maven-3.3.9\mavenFactory\respo\mysql\mysql-connector-java\5.1.21\mysql-connector-java-5.1.21.jar" />
	<context id="mysqlTables" targetRuntime="MyBatis3"
		defaultModelType="flat">

		<commentGenerator>
			<property name="suppressDate" value="true" />
			<property name="suppressAllComments" value="true"/>
		</commentGenerator>

		<jdbcConnection driverClass="com.mysql.jdbc.Driver"
			connectionURL="jdbc:mysql://115.28.13.4:3306/eiddb" userId="root"
			password="****">
		</jdbcConnection>

		<!-- false:把JDBC DECIMAL 和 NUMERIC 类型解析为 Integer true :把JDBC DECIMAL 和 
			NUMERIC 类型解析为 java.math.BigDecimal -->
		<javaTypeResolver>
			<property name="forceBigDecimals" value="false" />
		</javaTypeResolver>

		<javaModelGenerator targetPackage="com.jjrt.eid.bean"
			targetProject="src/main/java">
			<property name="enableSubPackages" value="true" />
			<!-- 从数据库返回的值被清理前后的空格 -->
			<property name="trimStrings" value="true" />
		</javaModelGenerator>

		<sqlMapGenerator targetPackage="mapper" targetProject="src/main/resources">
			<property name="enableSubPackages" value="true" />
		</sqlMapGenerator>

		<javaClientGenerator targetPackage="com.jjrt.eid.mapper"
			type="XMLMAPPER" targetProject="src/main/java">
			<property name="enableSubPackages" value="true" />
		</javaClientGenerator>

		<table tableName="ap_info" domainObjectName="apInfoBean"
			enableCountByExample="false" 
			enableUpdateByExample="false"
			enableDeleteByExample="false" 
			enableSelectByExample="false"
			selectByExampleQueryId="false" />

	</context>
</generatorConfiguration>

[fondOfJava]

是不是连不上数据库了？

[gwd2016]

引用 1 楼 fondOfJava 的回复:

是不是连不上数据库了？

嗯

[东天里的冬天]

应该是数据库连接错误,你仔细检查一下看看数据库有没有问题呢

[weixin_42146381]

建议检查一下连接配置。
<plugin>
<!--Mybatis-generator插件,用于自动生成Mapper和POJO-->
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-maven-plugin</artifactId>
<version>1.3.2</version>
<configuration>
<!--配置文件的位置-->
<configurationFile>D:/工作/代码/happyRec/src/main/resources/mybatis-generator-config.xml</configurationFile>
<verbose>true</verbose>
<overwrite>true</overwrite>
</configuration>
<executions>
<execution>
<id>Generate MyBatis Artifacts</id>
<goals>
<goal>generate</goal>
</goals>
</execution>
</executions>

红色字体部分如果配置错了，或者不是本项目下的文件，generate是不会去连接数据库的。