ssm框架tomcat服务器访问数据库数据报错,猜测是数据库连接的问题又不敢确认,有遇到过这种问题的吗
服务器的错误信息如下
tomcat日志信息
controller层的类
package com.duing.controller;
import com.duing.service.FilmService;
import com.duing.vo.FilmVo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import java.util.List;
@Controller
public class FilmController {
@Autowired
private FilmService filmService;
@RequestMapping("/filmList")
@ResponseBody
public List<FilmVo> selectAll(){
List<FilmVo> filmVos = filmService.selectAll();
return filmVos;
}
}
dao层的接口信息
package com.duing.dao;
import com.duing.entity.Film;
import java.util.List;
public interface FilmDao {
List<Film> getList();
}
映射类信息
package com.duing.entity;
import java.io.Serializable;
import java.util.Date;
// 实体类 跟数据库的表映射
public class Film implements Serializable {
private static final long serialVersionUID = -4427069375523038931L;
private long id;
private String film_id;
private String name;
private String director;
private String player;
private String type;
private String country;
private int length;
private String synopsis;
private Date play_time;
private String img_path;
public long getId() {
return id;
}
public void setId(long id) {
this.id = id;
}
public String getFilm_id() {
return film_id;
}
public void setFilm_id(String film_id) {
this.film_id = film_id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getDirector() {
return director;
}
public void setDirector(String director) {
this.director = director;
}
public String getPlayer() {
return player;
}
public void setPlayer(String player) {
this.player = player;
}
public String getType() {
return type;
}
public void setType(String type) {
this.type = type;
}
public String getCountry() {
return country;
}
public void setCountry(String country) {
this.country = country;
}
public int getLength() {
return length;
}
public void setLength(int length) {
this.length = length;
}
public String getSynopsis() {
return synopsis;
}
public void setSynopsis(String synopsis) {
this.synopsis = synopsis;
}
public Date getPlay_time() {
return play_time;
}
public void setPlay_time(Date play_time) {
this.play_time = play_time;
}
public String getImg_path() {
return img_path;
}
public void setImg_path(String img_path) {
this.img_path = img_path;
}
}
service层接口
package com.duing.service;
import com.duing.vo.FilmVo;
import java.util.List;
public interface FilmService {
List<FilmVo> selectAll();
}
service层类
package com.duing.service.impl;
import com.duing.dao.FilmDao;
import com.duing.entity.Film;
import com.duing.service.FilmService;
import com.duing.vo.FilmVo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.ArrayList;
import java.util.List;
@Service
public class FilmServiceimpl implements FilmService {
@Autowired
private FilmDao filmDao;
@Override
public List<FilmVo> selectAll() {
List<Film> films = filmDao.getList();
System.out.println("数据库影片数量"+films.size());
List<FilmVo> result=new ArrayList<>();
for (Film film : films) {
FilmVo vo= new FilmVo();
vo.setFilmId(film.getFilm_id());
vo.setName(film.getName());
vo.setDirector(film.getDirector());
vo.setImgpath(film.getImg_path());
result.add(vo);
}
return result;
}
}
视图层vo
package com.duing.vo;
// 视图层对象 用来展示给用户使用
public class FilmVo {
private String filmId;
private String name;
private String director;
private String imgpath;
public String getFilmId() {
return filmId;
}
public void setFilmId(String filmId) {
this.filmId = filmId;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getDirector() {
return director;
}
public void setDirector(String director) {
this.director = director;
}
public String getImgpath() {
return imgpath;
}
public void setImgpath(String imgpath) {
this.imgpath = imgpath;
}
}
mapper配置信息
package com.duing.vo;
// 视图层对象 用来展示给用户使用
public class FilmVo {
private String filmId;
private String name;
private String director;
private String imgpath;
public String getFilmId() {
return filmId;
}
public void setFilmId(String filmId) {
this.filmId = filmId;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getDirector() {
return director;
}
public void setDirector(String director) {
this.director = director;
}
public String getImgpath() {
return imgpath;
}
public void setImgpath(String imgpath) {
this.imgpath = imgpath;
}
}
mybtis配置信息
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE configuration
PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
<mappers>
<package name="com.duing.dao"/>
</mappers>
</configuration>
spring配置信息
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
http://www.springframework.org/schema/aop
https://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/tx
https://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/context
https://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/mvc
https://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/beans
https://www.springframework.org/schema/beans/spring-beans.xsd">
<context:component-scan base-package="com.duing.service"/>
<context:property-placeholder location="classpath:druid.properties"/>
<bean id="datasource" class="com.alibaba.druid.pool.DruidDataSource">
<property name="url" value="${jdbc.url}"/>
<property name="username" value="${jdbc.username}"/>
<property name="password" value="${jdbc.password}"/>
</bean>
<bean id="factory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="datasource"/>
<property name="configLocation" value="classpath:/mybatis.xml"/>
<property name="mapperLocations" value="classpath:mappers/*.xml"/>
</bean>
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="sqlSessionFactoryBeanName" value="factory"/>
<property name="basePackage" value="com.duing.dao"/>
</bean>
</beans>
springmvc配置信息
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
http://www.springframework.org/schema/context
https://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/mvc
https://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/beans
https://www.springframework.org/schema/beans/spring-beans.xsd">
<context:component-scan base-package="com.duing.controller"/>
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsp/"/>
<property name="suffix" value=".jsp"/>
</bean>
<mvc:annotation-driven/>
<context:annotation-config/>
</beans>
druid.properties信息
jdbc.url=jdbc://mysql://localhost:3306/ssm?characterEncoding=utf8
jdbc.username=root
jdbc.password=root
pom.xml信息
<?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.duing</groupId>
<artifactId>ssm-duing-ticket</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>war</packaging>
<name>ssm-duing-ticket Maven Webapp</name>
<url>http://www.example.com</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.7</maven.compiler.source>
<maven.compiler.target>1.7</maven.compiler.target>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>5.2.12.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>5.2.12.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>5.2.12.RELEASE</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.5.6</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>5.2.12.RELEASE</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>2.0.6</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.22</version>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.2.4</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>4.0.1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>jsp-api</artifactId>
<version>2.2</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>2.12.1</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.12.1</version>
</dependency>
</dependencies>
<build>
<finalName>ssm-duing-ticket</finalName>
<pluginManagement>
<plugins>
<plugin>
<artifactId>maven-clean-plugin</artifactId>
<version>3.1.0</version>
</plugin>
<plugin>
<artifactId>maven-resources-plugin</artifactId>
<version>3.0.2</version>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.0</version>
</plugin>
<plugin>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.22.1</version>
</plugin>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>3.2.2</version>
</plugin>
<plugin>
<artifactId>maven-install-plugin</artifactId>
<version>2.5.2</version>
</plugin>
<plugin>
<artifactId>maven-deploy-plugin</artifactId>
<version>2.8.2</version>
</plugin>
</plugins>
</pluginManagement>
</build>
</project>
包结构