SSM框架简单实例
1、SSM框架
SSM（Spring+SpringMVC+MyBatis）框架集由Spring、SpringMVC、MyBatis三个开源框架整合而成，常作为数据源较简单的web项目的框架。
2、简单实例
（1）项目结构
（2）PageBean.java
package cn.hwd.paging.bean;
import java.util.List;
public class PageBean {
private int pc;// 当前页码page code
// private int tp;// 总页数total page
private int tr;// 总记录数total record
private int ps;// 每页记录数page size
private List list;// 当前页的记录
public int getPc() {
return pc;
}
public void setPc(int pc) {
this.pc = pc;
}
/**
* 计算总页数
* @return
*/
public int getTp() {
// 通过总记录数和每页记录数来计算总页数
int tp = tr / ps;
return tr%ps==0 ? tp : tp+1;
}
// public void setTp(int tp) {
// this.tp = tp;
// }
public int getTr() {
return tr;
}
public void setTr(int tr) {
this.tr = tr;
}
public int getPs() {
return ps;
}
public void setPs(int ps) {
this.ps = ps;
}
public List getList() {
return list;
}
public void setList(List list) {
this.list = list;
}
} （3）User.java
package cn.hwd.paging.bean;
import java.util.Date;
public class User {
private Integer id;
private String name;
private Integer age;
private Date birth;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Integer getAge() {
return age;
}
public void setAge(Integer age) {
this.age = age;
}
public Date getBirth() {
return birth;
}
public void setBirth(Date birth) {
this.birth = birth;
}
public User() {
super();
// TODO Auto-generated constructor stub
}
public User(Integer id, String name, Integer age, Date birth) {
super();
this.id = id;
this.name = name;
this.age = age;
this.birth = birth;
}
}（4）UserController.java
package cn.hwd.paging.controller;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import cn.hwd.paging.bean.PageBean;
import cn.hwd.paging.bean.User;
import cn.hwd.paging.service.UserService;
@Controller
@RequestMapping("/user")
public class UserController {
@Autowired
private UserService userService;
@RequestMapping("/index.action")
public String index(
@RequestParam(value="pc", required=true, defaultValue="1") Integer pc,
Model model) throws Exception {
PageBean pb = new PageBean();
pb.setPc(pc);
int ps = 10;
pb.setPs(ps);
int tr = userService.count();
pb.setTr(tr);
Map map = new HashMap();
map.put("m", (pc - 1) * ps);
map.put("n", ps);
List users = userService.findAll(map);
pb.setList(users);
model.addAttribute("pb", pb);
return "index";
}
} （5）UserMapper.java
package cn.hwd.paging.mapper;
import java.util.List;
import java.util.Map;
import cn.hwd.paging.bean.User;
public interface UserMapper {
public Integer count() throws Exception;
public List findAll(Map map) throws Exception;
} （6）UserMapper.xml
（7）UserService.java
package cn.hwd.paging.service;
import java.util.List;
import java.util.Map;
import cn.hwd.paging.bean.User;
public interface UserService {
public Integer count() throws Exception;
public List findAll(Map map) throws Exception;
} （8）UserServiceImpl.java
package cn.hwd.paging.service.impl;
import java.util.List;
import java.util.Map;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import cn.hwd.paging.bean.User;
import cn.hwd.paging.mapper.UserMapper;
import cn.hwd.paging.service.UserService;
@Service("userService")
public class UserServiceImpl implements UserService {
@Autowired
private UserMapper userMapper;
public Integer count() throws Exception {
return userMapper.count();
}
@Override
public List findAll(Map map) throws Exception {
return userMapper.findAll(map);
}
} （9）jdbc.properties
jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://127.0.0.1:3306/hwd
jdbc.username=root
jdbc.password=mysql（10）log4j.properties
# 定义log输出级别
log4j.rootLogger=DEBUG, Console
# 定义log输出为控制台
log4j.appender.Console=org.apache.log4j.ConsoleAppender
# 指定输出格式，其中%p表示日志级别 ，%t表示当前线程名，%m表示日志内容，%n表示换行
log4j.appender.Console.layout=org.apache.log4j.PatternLayout
log4j.appender.Console.layout.ConversionPattern=%5p [%t] - %m%n（11）mybatis-config.xml
（12）spring-servlet.xml
（13）pom.xml
4.0.0
cn.hwd
paging
war
0.0.1-SNAPSHOT
paging Maven Webapp
http://maven.apache.org
junit
junit
4.8.1
javax.servlet
servlet-api
2.5
org.mybatis
mybatis
3.2.6
mysql
mysql-connector-java
5.1.30
log4j
log4j
1.2.16
org.springframework
spring-webmvc
4.0.2.RELEASE
org.mybatis
mybatis-spring
1.2.2
commons-dbcp
commons-dbcp
1.2.2
org.springframework
spring-jdbc
4.0.2.RELEASE
javax.servlet
jstl
1.2
taglibs
standard
1.1.2
paging
（14）index.jsp
<%@ page language="java" contentType="text/html; charset=utf-8"
pageEncoding="utf-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %>
paging
（15）web.xml
Archetype Created Web Application
index.html
index.htm
index.jsp
default.html
default.htm
default.jsp
spring
org.springframework.web.servlet.DispatcherServlet
contextConfigLocation
classpath:spring-servlet.xml
spring
*.action
（16）运行结果
