Spring boot + mybatis+mysql 问题,找不到jdbc

[pc994]

配置文件

spring.datasource.url = jdbc:mysql://localhost:3306/pc
spring.datasource.username=root  
spring.datasource.password=root
spring.datasource.driverClassName=com.mysql.jdbc.Driver  

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<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>

	<groupId>com.example</groupId>
	<artifactId>spring_boot</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<packaging>jar</packaging>

	<name>spring_boot</name>
	<description>Demo project for Spring Boot</description>

	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>1.3.8.RELEASE</version>
		<relativePath /> <!-- lookup parent from repository -->
	</parent>

	<properties>
		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
		<java.version>1.8</java.version>
	</properties>

	<dependencies>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>
		</dependency>

		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-test</artifactId>
			<scope>test</scope>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-devtools</artifactId>
		</dependency>

		<dependency>
			<groupId>org.mybatis.spring.boot</groupId>
			<artifactId>mybatis-spring-boot-starter</artifactId>
			<version>1.1.1</version>
		</dependency>


		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-jdbc</artifactId>
		</dependency>

		<dependency>
			<groupId>mysql</groupId>
			<artifactId>mysql-connector-java</artifactId>
		</dependency>
		<dependency>
			<groupId>com.github.pagehelper</groupId>
			<artifactId>pagehelper</artifactId>
			<version>4.0.0</version>
		</dependency>

		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-configuration-processor</artifactId>
			<optional>true</optional>
		</dependency>
	</dependencies>

	<build>
		<plugins>
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
			</plugin>
		</plugins>
	</build>

	<!-- 远程仓库 -->
	<repositories>
		<repository>
			<id>nexus</id>
			<name>matuowang-nexus-repository</name>
			<url>http://maven.aliyun.com/nexus/content/groups/public/</url>
			<releases>
				<enabled>true</enabled>
			</releases>
			<snapshots>
				<enabled>false</enabled>
			</snapshots>
		</repository>
	</repositories>


</project>

conf

package com.example.conf;
  
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.jdbc.datasource.DriverManagerDataSource;  
  
@Configuration  
@ConfigurationProperties(prefix = "spring.datasource")  
public class MyBatisConfiguration {  
      
    private String url;  
    private String driverClassName;  
    private String username;  
    private String password;  
  
  
    public String getUrl() {  
        return url;  
    }  
  
    public void setUrl(String url) {  
        this.url = url;  
    }  
  
    public String getDriverClassName() {  
        return driverClassName;  
    }  
  
    public void setDriverClassName(String driverClassName) {  
        this.driverClassName = driverClassName;  
    }  
  
    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;  
    }  
  
//    @Bean  
//    public PageHelper pageHelper() {  
//        System.out.println("MyBatisConfiguration.pageHelper()");  
//        PageHelper pageHelper = new PageHelper();  
//        Properties p = new Properties();  
//        p.setProperty("offsetAsPageNum", "true");  
//        p.setProperty("rowBoundsWithCount", "true");  
//        p.setProperty("reasonable", "true");  
//        pageHelper.setProperties(p);  
//        return pageHelper;  
//    }  
      
    @Bean(name = "dataSource")  
    public DriverManagerDataSource dataSource(){  
         DriverManagerDataSource driverManagerDataSource = new DriverManagerDataSource();  
         driverManagerDataSource.setDriverClassName(driverClassName);  
         driverManagerDataSource.setUrl(url);  
         driverManagerDataSource.setUsername(username);  
         driverManagerDataSource.setPassword(password);  
         return driverManagerDataSource;  
    }  
  
} 

启动

package com.example;

import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
@MapperScan("com.example.mapper.*Mapper")
public class Application {

	public static void main(String[] args) {
		SpringApplication.run(Application.class, args);
	}
}

异常

### Error querying database.  Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is java.sql.SQLException: Access denied for user 'root  '@'localhost' (using password: YES)
### The error may exist in com/example/mapper/UserMapper.java (best guess)
### The error may involve com.example.mapper.UserMapper.getUserInfo
### The error occurred while executing a query
### Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is java.sql.SQLException: Access denied for user 'root  '@'localhost' (using password: YES)] with root cause
java.sql.SQLException: Access denied for user 'root  '@'localhost' (using password: YES)
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:963)
	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3966)
	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3902)
	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:875)
	at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1712)
	at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1228)
	at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2253)
	at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2284)
	at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2083)
	at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:806)
	at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47)
	

[wjybokee]

解决了吗 这个问题 ？我也遇到了

[御虫升]

你把localhsot改为127.0.0.1试试