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spring boot 2.x版本：java.lang.ClassNotFoundException: org.springframework.boot.bind.RelaxedDataBinder
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标题 ##搭建spring boot 2.0.3版本
使用alibaba的druid数据库连接池，com.github.pagehelper的分页插件，启动项目报错。
错误提示：java.lang.ClassNotFoundException: org.springframework.boot.bind.RelaxedDataBinder
boot.bind下找不到RelaxedDataBinder这个方法
查看API发现,这个org.springframework.boot.bind 包已经删掉了,导致RelaxedPropertyResolver这个方法已经不可用了
解决方案一：使用jdbc连接<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
附application.yml配置，建议使用yml格式配置，properties格式的配置文件有时无效果
server:
port: 8080spring:
datasource:
name: test
url: jdbc:mysql://127.0.0.1:3306/mytest
username: root
password: 123456
driver-class-name: com.mysql.jdbc.Driver
mybatis:
mapper-locations: classpath:mapper/*Mapper.xml
type-aliases-package: com.example.spring_boot.bean
解决方案二：boot版本改为1.5.x版本
附alibaba的druid数据库连接池
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid-spring-boot-starter</artifactId>
<version>1.1.0</version>
</dependency>
com.github.pagehelper分页插件
<dependency>
<groupId>com.github.pagehelper</groupId>
<artifactId>pagehelper-spring-boot-starter</artifactId>
<version>1.1.2</version>
</dependency>
附application.yml配置
server:
port: 8080spring:
datasource:
name: test
type: com.alibaba.druid.pool.DruidDataSource
druid:
driver-class-name: com.mysql.jdbc.Driver
url: jdbc:mysql://127.0.0.1:3306/mytest
username: root
password: 123456
mybatis:
mapper-locations: classpath:mapper/*Mapper.xml
type-aliases-package: com.example.spring_boot.bean#pagehelper
pagehelper:
helperDialect: mysql
reasonable: true
supportMethodsArguments: true
params: count=countSql
returnPageInfo: check
