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JDBC改用连接池连接

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1

JDBC

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

<context:component-scan base-package="com_twg.controller,com_twg.service"/>
            
    <bean id="propertyConfig" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
    <property name="location" value="classpath:jdbc.properties"/>
    </bean>

<bean id="dataSource"
          class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="user" value="${user}"/>
        <property name="password" value="${password}"/>
        <property name="jdbcUrl" value="${jdbcUrl}"/>
        <property name="driverClass" value="${driverClass}"/>
        <property name="initialPoolSize" value="${initPoolSize}"/>
        <property name="maxPoolSize" value="${maxPoolSize}"/>
    </bean>

<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"/>
        <property name="configLocation" value="classpath:mybatis-config01.xml"/>
        <property name="mapperLocations" value="classpath:com_twg/dao/studentMapper.xml"/>
    </bean>

<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
    <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
    <property name="basePackage" value="com_twg.dao"/>
    </bean>
    <!--      因为会自动装配 SqlSessionFactory和SqlSessionTemplate

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mybatis实现查询数据库，有关于占位符 #{} 的问题

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mybatis 数据库

class="cursor-pointer"> 详细描述

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spring boot 启动出问题，找不到对应的启动程序

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1

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

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代码生成的过程中出现,Zip File is closed错误

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1

代码生成

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

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nginx启动成功无法访问端口

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1

Nginx

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

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tomcat启动项目时间过长

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1

jetty/tomcat

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

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Springcloud运行后报错，找不到服务

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springcloud

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

class="cursor-pointer"> 源码

import com.example.serviceweb.model.ExcellentStudent;
import org.springframework.cloud.openfeign.FeignClient;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;

import java.util.List;
@FeignClient(name= "server-sql")
public interface ESService  {
    /*
     * 从Eureka获取注册服务列表，从而能够消费服务*/
    @RequestMapping(value = "/ES/getById")
    ExcellentStudent getById(@RequestParam("id") Integer id) ;
    @RequestMapping(value = "/ES/listAll")
    List<ExcellentStudent> listAll();
}

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创建数据表和导入数据时总是出现上图红圈记号所示的错误，但不影响运行结果

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数据库

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图