SpringMvc--CRUD
目录
一.什么是SpringMvc--CRUD
二.前期准备
公共页面跳转(专门用来处理页面跳转)
三.ssm之CRUD后端实现
配置pom.xml
双击mybatis-generator:generate自动生成mapper
编写generatorConfig.xml
项目结构
编写PagerAspect切面类
编写hpjyBiz接口类
编写hpjyBizImpl接口实现类
编写Spring-mybatias.xml
编写Spring.mvc.xml
在重新配置pom.xml文件
编写page tag类
编写hpjyController类
四.ssm之CRUD前端实现
编写jsp/hpjy/list.jsp
测试页面
测试查询
测试新增
编辑
测试修改
测试删除
编辑
一.什么是SpringMvc--CRUD
什么是SpringMvc--CRUD
Spring MVC是一个基于Java的Web应用程序框架，它提供了一种MVC（模型-视图-控制器）的架构模式来开发Web应用程序。CRUD是指创建（Create）、读取（Read）、更新（Update）和删除（Delete）这四个基本的数据操作。在Spring MVC中，你可以使用相关的注解和配置方式来实现CRUD操作，简化了Web应用程序的开发过程。
二.前期准备
公共页面跳转(专门用来处理页面跳转)
package com.xy.web;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
/**
* @author bing人
* @site
* @company xy集团
* @create 2023-09-07 14:53
*/
//专门用来处理页面跳转
@Controller
public class PageController {
@RequestMapping("/page/{page}")
public String toPage(@PathVariable("page") String page){
return page;
}
@RequestMapping("/page/{Dir}{page}")
public String toDirPage(@PathVariable("Dir") String dir,
@PathVariable("page") String page){
return dir + "/" + page;
}
}
三.ssm之CRUD后端实现
配置pom.xml
4.0.0
com.zking
xyzyssm
1.0-SNAPSHOT
war
xyzyssm Maven Webapp
http://www.example.com
UTF-8
1.8
1.8
3.7.0
5.0.2.RELEASE
3.4.5
5.1.44
5.1.2
1.3.1
2.1.1
2.4.3
2.9.1
3.2.0
1.7.13
4.12
4.0.0
1.18.2
1.2
1.1.2
5.0.2.RELEASE
2.9.3
org.springframework
spring-context
${spring.version}
org.springframework
spring-orm
${spring.version}
org.springframework
spring-tx
${spring.version}
org.springframework
spring-aspects
${spring.version}
org.springframework
spring-web
${spring.version}
org.springframework
spring-test
${spring.version}
org.mybatis
mybatis
${mybatis.version}
mysql
mysql-connector-java
${mysql.version}
com.github.pagehelper
pagehelper
${pagehelper.version}
org.mybatis
mybatis-spring
${mybatis.spring.version}
org.apache.commons
commons-dbcp2
${commons.dbcp2.version}
commons-pool2
org.apache.commons
org.apache.commons
commons-pool2
${commons.pool2.version}
org.slf4j
slf4j-api
${slf4j.version}
org.slf4j
jcl-over-slf4j
${slf4j.version}
runtime
org.apache.logging.log4j
log4j-api
${log4j2.version}
org.apache.logging.log4j
log4j-core
${log4j2.version}
org.apache.logging.log4j
log4j-slf4j-impl
${log4j2.version}
slf4j-api
org.slf4j
org.apache.logging.log4j
log4j-web
${log4j2.version}
runtime
com.lmax
disruptor
${log4j2.disruptor.version}
junit
junit
${junit.version}
javax.servlet
javax.servlet-api
${servlet.version}
provided
org.projectlombok
lombok
${lombok.version}
provided
org.springframework
spring-webmvc
${spring.version}
jstl
jstl
${jstl.version}
taglibs
standard
${standard.version}
com.fasterxml.jackson.core
jackson-databind
${jackson.version}
com.fasterxml.jackson.core
jackson-core
${jackson.version}
com.fasterxml.jackson.core
jackson-annotations
${jackson.version}
xyzyssm
src/main/java
**/*.xml
src/main/resources
jdbc.properties
*.xml
org.apache.maven.plugins
maven-compiler-plugin
${maven.compiler.plugin.version}
${maven.compiler.source}
${maven.compiler.target}
${project.build.sourceEncoding}
org.mybatis.generator
mybatis-generator-maven-plugin
1.3.2
mysql
mysql-connector-java
${mysql.version}
true
maven-clean-plugin
3.1.0
maven-resources-plugin
3.0.2
maven-compiler-plugin
3.8.0
maven-surefire-plugin
2.22.1
maven-war-plugin
3.2.2
maven-install-plugin
2.5.2
maven-deploy-plugin
2.8.2
双击mybatis-generator:generate自动生成mapper
（注：只要双击一次就可以了，如果多次双击会生成多个mapper）
编写generatorConfig.xml
项目结构
编写PagerAspect切面类
package com.xy.aspect;
import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import com.xy.utils.PageBean;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.springframework.stereotype.Component;
import java.util.List;
/**
* @author bing人
* @site
* @company xy集团
* @create 2023-08-25 16:33
*/
@Aspect //代表当前类为切面类
@Component //代表当前类交给spring进行管理
public class PagerAspect {
@Around("execution(* *..*Biz.*Pager(..))")
public Object invoke(ProceedingJoinPoint args) throws Throwable{
PageBean pageBean=null;
//获取目标方法中的所有参数
Object[] ags = args.getArgs();
for (Object param : ags) {
if(param instanceof PageBean){
pageBean = (PageBean) param;
break;
}
}
if(pageBean !=null && pageBean.isPagination())
PageHelper.startPage(pageBean.getPage(),pageBean.getRows());
//执行目标方法
Object lst = args.proceed();
if(pageBean !=null && pageBean.isPagination()){
PageInfo info = new PageInfo((List) lst);
pageBean.setTotal((int)info.getTotal());
}
return lst;
}
}
编写hpjyBiz接口类
package com.xy.biz;
import com.xy.model.hpjy;
import com.xy.utils.PageBean;
import java.util.List;
public interface hpjyBiz {
int deleteByPrimaryKey(Integer id);
int insert(hpjy record);
int insertSelective(hpjy record);
hpjy selectByPrimaryKey(Integer id);
int updateByPrimaryKeySelective(hpjy record);
int updateByPrimaryKey(hpjy record);
List listPager(hpjy hpjy, PageBean pageBean);
} 编写hpjyBizImpl接口实现类
package com.xy.biz.impl;
import com.xy.biz.hpjyBiz;
import com.xy.mapper.hpjyMapper;
import com.xy.model.hpjy;
import com.xy.utils.PageBean;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.List;
/**
* @author bing人
* @site
* @company xy集团
* @create 2023-09-07 16:33
*/
@Service
public class hpjyBizImpl implements hpjyBiz {
@Autowired
private hpjyMapper hpjymapper;
@Override
public int deleteByPrimaryKey(Integer id) {
return hpjymapper.deleteByPrimaryKey(id);
}
@Override
public int insert(hpjy record) {
return hpjymapper.insert(record);
}
@Override
public int insertSelective(hpjy record) {
return hpjymapper.insertSelective(record);
}
@Override
public hpjy selectByPrimaryKey(Integer id) {
return hpjymapper.selectByPrimaryKey(id);
}
@Override
public int updateByPrimaryKeySelective(hpjy record) {
return hpjymapper.updateByPrimaryKeySelective(record);
}
@Override
public int updateByPrimaryKey(hpjy record) {
return hpjymapper.updateByPrimaryKey(record);
}
@Override
public List listPager(hpjy hpjy, PageBean pageBean) {
return hpjymapper.SelectBycon(hpjy);
}
}
编写Spring-mybatias.xml
helperDialect=mysql
编写Spring.mvc.xml
在重新配置pom.xml文件
4.0.0
org.example
xyzy
1.0-SNAPSHOT
war
xyzy Maven Webapp
http://www.example.com
UTF-8
1.8
1.8
3.7.0
5.0.2.RELEASE
3.4.5
5.1.44
5.1.2
1.3.1
2.1.1
2.4.3
2.9.1
3.2.0
1.7.13
4.12
4.0.0
1.18.2
1.1.0
2.10.0
2.9.0
1.7.1.RELEASE
2.9.3
1.2
1.1.2
8.0.47
1.3.3
5.0.2.Final
1.3.2
org.springframework
spring-core
${spring.version}
org.springframework
spring-beans
${spring.version}
org.springframework
spring-context
${spring.version}
org.springframework
spring-orm
${spring.version}
org.springframework
spring-tx
${spring.version}
org.springframework
spring-aspects
${spring.version}
org.springframework
spring-web
${spring.version}
org.springframework
spring-test
${spring.version}
org.mybatis
mybatis
${mybatis.version}
mysql
mysql-connector-java
${mysql.version}
com.github.pagehelper
pagehelper
${pagehelper.version}
org.mybatis
mybatis-spring
${mybatis.spring.version}
org.springframework
spring-context-support
${spring.version}
org.mybatis.caches
mybatis-ehcache
${mybatis.ehcache.version}
net.sf.ehcache
ehcache
${ehcache.version}
redis.clients
jedis
${redis.version}
org.springframework.data
spring-data-redis
${redis.spring.version}
com.fasterxml.jackson.core
jackson-databind
${jackson.version}
com.fasterxml.jackson.core
jackson-core
${jackson.version}
com.fasterxml.jackson.core
jackson-annotations
${jackson.version}
org.apache.commons
commons-dbcp2
${commons.dbcp2.version}
commons-pool2
org.apache.commons
org.apache.commons
commons-pool2
${commons.pool2.version}
org.springframework
spring-webmvc
${spring.version}
org.slf4j
slf4j-api
${slf4j.version}
org.slf4j
jcl-over-slf4j
${slf4j.version}
runtime
org.apache.logging.log4j
log4j-api
${log4j2.version}
org.apache.logging.log4j
log4j-core
${log4j2.version}
org.apache.logging.log4j
log4j-slf4j-impl
${log4j2.version}
org.apache.logging.log4j
log4j-web
${log4j2.version}
runtime
com.lmax
disruptor
${log4j2.disruptor.version}
junit
junit
${junit.version}
javax.servlet
javax.servlet-api
${servlet.version}
provided
org.projectlombok
lombok
${lombok.version}
provided
jstl
jstl
${jstl.version}
taglibs
standard
${standard.version}
org.apache.tomcat
tomcat-jsp-api
${tomcat-jsp-api.version}
commons-fileupload
commons-fileupload
${commons-fileupload.version}
org.hibernate
hibernate-validator
${hibernate-validator.version}
org.apache.shiro
shiro-core
${shiro.version}
org.apache.shiro
shiro-web
${shiro.version}
org.apache.shiro
shiro-spring
${shiro.version}
xyzy
src/main/java
**/*.xml
src/main/resources
*.properties
*.xml
org.apache.maven.plugins
maven-compiler-plugin
${maven.compiler.plugin.version}
${maven.compiler.source}
${maven.compiler.target}
${project.build.sourceEncoding}
org.mybatis.generator
mybatis-generator-maven-plugin
1.3.2
mysql
mysql-connector-java
${mysql.version}
true
maven-clean-plugin
3.1.0
maven-resources-plugin
3.0.2
maven-compiler-plugin
3.8.0
maven-surefire-plugin
2.22.1
maven-war-plugin
3.2.2
maven-install-plugin
2.5.2
maven-deploy-plugin
2.8.2
编写page tag类
package com.xy.tag;
import com.xy.utils.PageBean;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.JspWriter;
import javax.servlet.jsp.tagext.BodyTagSupport;
import java.io.IOException;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
public class PageTag extends BodyTagSupport{
private PageBean pageBean;// 包含了所有分页相关的元素
public PageBean getPageBean() {
return pageBean;
}
public void setPageBean(PageBean pageBean) {
this.pageBean = pageBean;
}
@Override
public int doStartTag() throws JspException {
// 没有标签体，要输出内容
JspWriter out = pageContext.getOut();
try {
out.print(toHTML());
} catch (IOException e) {
e.printStackTrace();
}
return super.doStartTag();
}
private String toHTML() {
StringBuffer sb = new StringBuffer();
// 隐藏的form表单---这个就是上一次请求下次重新发的奥义所在
// 上一次请求的URL
sb.append("");
// 分页条
sb.append("");
// 分页执行的JS代码
sb.append("");
return sb.toString();
}
}
编写hpjyController类
package com.xy.web;
import com.xy.biz.hpjyBiz;
import com.xy.model.hpjy;
import com.xy.utils.PageBean;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import javax.servlet.http.HttpServletRequest;
import java.util.List;
/**
* @author bing人
* @site
* @company xy集团
* @create 2023-09-08 19:13
*/
@Controller
@RequestMapping("/hpjy")
public class hpjyController {
@Autowired
private hpjyBiz hpjyBiz;
//增
@RequestMapping("/add")
public String add(hpjy hpjy){
int i = hpjyBiz.insertSelective(hpjy);
return "redirect:list";
}
//删
@RequestMapping("/del")
public String del(hpjy hpjy){
hpjyBiz.deleteByPrimaryKey(hpjy.getId());
return "redirect:list";
}
//改
public String edit(hpjy hpjy){
hpjyBiz.updateByPrimaryKeySelective(hpjy);
return "redirect:list";
}
//查
@GetMapping("/list")
public String list(hpjy hpjy, HttpServletRequest request){
PageBean pageBean =new PageBean();
pageBean.setRequest(request);
List hpjies = hpjyBiz.listPager(hpjy, pageBean);
request.setAttribute("lst",hpjies);
request.setAttribute("pageBean",pageBean);
return "hpjy/list";
}
//数据回显
@RequestMapping("/presave")
public String presave(hpjy hpjy,HttpServletRequest request){
if(hpjy != null && hpjy.getId() !=null && hpjy.getId() !=0){
hpjy h = hpjyBiz.selectByPrimaryKey(hpjy.getId());
request.setAttribute("h",h);
}
return "hpjy/edit";
}
}
四.ssm之CRUD前端实现
编写jsp/hpjy/list.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ taglib uri="http://jsp.veryedu.cn" prefix="z"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
博客列表
枪械编号
枪械名称
枪械属性
操作
${b.id }
${b.name }
${b.type }
修改
删除
测试页面
测试查询
测试新增
测试修改
