屬性「數據源」是必需的春天JDBC

嵌套異常數據源需要

春天工具套件

版本：3.7。 1.RELEASE

servlet-context.xml

<?xml version="1.0" encoding="UTF-8"?> 
<beans:beans xmlns="http://www.springframework.org/schema/mvc" 
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xmlns:beans="http://www.springframework.org/schema/beans" 
    xmlns:context="http://www.springframework.org/schema/context" 
    xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd 
    http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd 
    http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"> 
    <!-- DispatcherServlet Context: defines this servlet's request-processing infrastructure --> 
    <!-- Enables the Spring MVC @Controller programming model --> 
    <annotation-driven /> 
    <!-- Handles HTTP GET requests for /resources/** by efficiently serving up static resources in the ${webappRoot}/resources directory --> 
    <resources mapping="/resources/**" location="/resources/" /> 
    <!-- Resolves views selected for rendering by @Controllers to .jsp resources in the /WEB-INF/views directory --> 
    <beans:bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> 
     <beans:property name="prefix" value="/WEB-INF/views/" /> 
     <beans:property name="suffix" value=".jsp" /> 
    </beans:bean> 
    <beans:bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource"> 
     <beans:property name="driverClassName" value="com.mysql.jdbc.Driver"/> 
     <beans:property name="url" value="jdbc:mysql://localhost:3306/mkyong"/> 
     <beans:property name="username" value=""/> 
     <beans:property name="password" value=""/> 
    </beans:bean> 
    <beans:bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate"> 
     <beans:property name="dataSource" ref="dataSource" /> 
    </beans:bean> 
    <context:component-scan base-package="com.tehnocracksolutions.JdbcExample" /> 
</beans:beans>

控制器

package com.tehnocracksolutions.JdbcExample.controller; 

import org.springframework.stereotype.Controller; 
import org.springframework.web.bind.annotation.RequestMapping; 
import org.springframework.web.bind.annotation.RequestMethod; 

import com.tehnocracksolutions.JdbcExample.Model.CreateModel; 

@Controller 
public class UserController { 

    @RequestMapping(value="create",method=RequestMethod.POST) 
    public String createUser(){ 
     CreateModel model = new CreateModel(); 
     model.insertdata(); 
     return "welcome"; 
    } 
}

產品型號：用於MySQL的數據庫連接，似乎數據源不正確

package com.tehnocracksolutions.JdbcExample.Model; 

import javax.sql.DataSource; 

import org.springframework.beans.factory.annotation.Autowired; 
import org.springframework.jdbc.core.JdbcTemplate; 

public class CreateModel { 
    @Autowired 
    DataSource datasource; 

    public void insertdata(){ 
     JdbcTemplate jdbcTemplate = new JdbcTemplate(datasource); 
     jdbcTemplate.execute("insert into data values('nayan','m','m','t')"); 
    } 

    public DataSource getDatasource() { 
     return datasource; 
    } 

    public void setDatasource(DataSource datasource) { 
     this.datasource = datasource; 
    } 
}

來源

2015-11-29 nayan

您應該發佈整個堆棧跟蹤... –

您已經在應用上下文xml中用dataSource配置了jdbcTemplate。你可以直接在你的CreateModel類中注入jdbcTemplate。 –

使用配置的Spring bean數據源過去了，不要使用

import javax.sql.DataSource;

來源

2015-11-30 04:00:52

你的配置是正確的。只要檢查你在mysql中創建了名爲「mkyong」的數據庫。

來源

2015-11-30 06:11:23

1路：申報數據源中的類文件爲：

org.springframework.jdbc.datasource.DriverManagerDataSource dataSource;

第二個辦法：或者只是聲明JDBC模板在CreateModel和使用JDBC模板自動裝配它。然後，你不需要在你的CreateModel類中聲明DataSource。

來源

2015-11-30 06:26:51

屬性「數據源」是必需的春天JDBC

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