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package config;import org.springframework.context.annotation.Bean;import org.springframework.context.annotation.ComponentScan;import org.springframework.context.annotation.Configuration;import org.springframework.web.servlet.config.annotation.EnableWebMvc;import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;import org.springframework.web.servlet.view.InternalResourceViewResolver;@Configuration@EnableWebMvc@ComponentScan("controller")public class SpringMVCConfig implements WebMvcConfigurer {/** * 配置视图解析器 */@Beanpublic InternalResourceViewResolver getViewResolver() { InternalResourceViewResolver viewResolver = new InternalResourceViewResolver(); viewResolver.setPrefix("/WEB-INF/jsp/"); viewResolver.setSuffix(".jsp");return viewResolver; }/** * 配置静态资源 */@Overridepublic void addResourceHandlers(ResourceHandlerRegistry registry) { registry.addResourceHandler("/js/**").addResourceLocations("/js/"); }}

package config;import javax.servlet.ServletContext;import javax.servlet.ServletException;import javax.servlet.ServletRegistration.Dynamic;import org.springframework.web.WebApplicationInitializer;import org.springframework.web.context.support.AnnotationConfigWebApplicationContext;import org.springframework.web.servlet.DispatcherServlet;public class WebConfig implements WebApplicationInitializer{@Overridepublic void onStartup(ServletContext arg0) throws ServletException { AnnotationConfigWebApplicationContext ctx  = new AnnotationConfigWebApplicationContext(); ctx.register(SpringMVCConfig.class);//注册Spring MVC的Java配置类SpringMVCConfig ctx.setServletContext(arg0);//和当前ServletContext关联/** * 注册Spring MVC的DispatcherServlet */ Dynamic servlet = arg0.addServlet("dispatcher", new DispatcherServlet(ctx)); servlet.addMapping("/"); servlet.setLoadOnStartup(1); }}

package pojo;public class Person {private String pname;private String password;private Integer page;public String getPname() {return pname; }public void setPname(String pname) {this.pname = pname; }public String getPassword() {return password; }public void setPassword(String password) {this.password = password; }public Integer getPage() {return page; }public void setPage(Integer page) {this.page = page; }}

package controller;import java.util.ArrayList;import java.util.HashMap;import java.util.List;import java.util.Map;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestBody;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.ResponseBody;import pojo.Person;@Controllerpublic class TestController {/** * 接收页面请求的JSON数据，并返回JSON格式结果 */ @RequestMapping("/testJson") @ResponseBody public List<Map<String, Object>> testJson(@RequestBody Person user) {//打印接收的JSON格式数据 System.out.println("pname=" + user.getPname() +", password=" + user.getPassword() + ",page=" + user.getPage());//返回Person对象//return user;/**ArrayList<Person> allp = new ArrayList<Person>(); Person p1 = new Person(); p1.setPname("陈恒1"); p1.setPassword("123456"); p1.setPage(80); allp.add(p1);
 Person p2 = new Person(); p2.setPname("陈恒2"); p2.setPassword("78910"); p2.setPage(90); allp.add(p2); //返回ArrayList<Person>对象 return allp; **/
Map<String, Object> map = new HashMap<String, Object>(); map.put("pname", "陈恒2"); map.put("password", "123456"); map.put("page", 25);//返回一个Map<String, Object>对象//return map;//返回一个List<Map<String, Object>>对象 List<Map<String, Object>> allp = new ArrayList<Map<String, Object>>(); allp.add(map);Map<String, Object> map1 = new HashMap<String, Object>(); map1.put("pname", "陈恒3"); map1.put("password", "54321"); map1.put("page", 55); allp.add(map1);return allp; }}

package config;import org.springframework.context.annotation.Bean;import org.springframework.context.annotation.ComponentScan;import org.springframework.context.annotation.Configuration;import org.springframework.web.servlet.config.annotation.EnableWebMvc;import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;import org.springframework.web.servlet.view.InternalResourceViewResolver;@Configuration@EnableWebMvc@ComponentScan(basePackages = {"controller","service"})public class SpringMVCConfig implements WebMvcConfigurer {/** * 配置视图解析器 */@Beanpublic InternalResourceViewResolver getViewResolver() { InternalResourceViewResolver viewResolver = new InternalResourceViewResolver(); viewResolver.setPrefix("/WEB-INF/jsp/"); viewResolver.setSuffix(".jsp");return viewResolver; }/*** 配置静态资源 */@Overridepublic void addResourceHandlers(ResourceHandlerRegistry registry) { registry.addResourceHandler("/html/**").addResourceLocations("/html/");//addResourceHandler指的是对外暴露的访问路径//addResourceLocations指的是静态资源存放的位置 }}

package config;import javax.servlet.ServletContext;import javax.servlet.ServletException;import org.springframework.web.WebApplicationInitializer;import org.springframework.web.context.support.AnnotationConfigWebApplicationContext;import org.springframework.web.filter.CharacterEncodingFilter;import org.springframework.web.servlet.DispatcherServlet;public class WebConfig implements WebApplicationInitializer{ @Overridepublic void onStartup(ServletContext arg0) throws ServletException {AnnotationConfigWebApplicationContext ctx  = new AnnotationConfigWebApplicationContext(); ctx.register(SpringMVCConfig.class);//注册Spring MVC的Java配置类SpringMVCConfig ctx.setServletContext(arg0);//和当前ServletContext关联/** * 注册Spring MVC的DispatcherServlet */ javax.servlet.ServletRegistration.Dynamic servlet = arg0.addServlet("dispatcher", new DispatcherServlet(ctx)); servlet.addMapping("/"); servlet.setLoadOnStartup(1);/** * 注册字符编码过滤器 */ javax.servlet.FilterRegistration.Dynamic filter = arg0.addFilter("characterEncodingFilter", CharacterEncodingFilter.class);filter.setInitParameter("encoding", "UTF-8");filter.addMappingForUrlPatterns(null, false, "/*"); }}

package controller;import java.util.HashMap;inputimport java.util.List;import org.apache.commons.logging.Log;import org.apache.commons.logging.LogFactory;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Controller;import org.springframework.ui.Model;import org.springframework.web.bind.annotation.ModelAttribute;import org.springframework.web.bind.annotation.RequestMapping;import pojo.User;import service.UserService;@Controller@RequestMapping("/user")public class UserController {// 得到一个用来记录日志的对象，这样打印信息的时候能够标记打印的是那个类的信息private static final Log logger = LogFactory.getLog(UserController.class);@Autowiredprivate UserService userService;@RequestMapping(value = "/input")public String inputUser(Model model) { HashMap<String, String> hobbys = new HashMap<String, String>(); hobbys.put("篮球", "篮球"); hobbys.put("乒乓球", "乒乓球"); hobbys.put("电玩", "电玩"); hobbys.put("游泳", "游泳");// 如果model中没有user属性，userAdd.jsp会抛出异常，因为表单标签无法找到// modelAttribute属性指定的form backing object model.addAttribute("user", new User()); model.addAttribute("hobbys", hobbys); model.addAttribute("carrers", new String[] { "教师", "学生", "coding搬运工", "IT民工", "其它" }); model.addAttribute("houseRegisters", new String[] { "北京", "上海", "广州", "深圳", "其它" });return "userAdd"; }@RequestMapping(value = "/save")public String addUser(@ModelAttribute User user, Model model) {if (userService.addUser(user)) { logger.info("成功");return "redirect:/user/list"; } else { logger.info("失败"); HashMap<String, String> hobbys = new HashMap<String, String>(); hobbys.put("篮球", "篮球"); hobbys.put("乒乓球", "乒乓球"); hobbys.put("电玩", "电玩"); hobbys.put("游泳", "游泳");// 这里不需要model.addAttribute("user", new// User())，因为@ModelAttribute指定form backing object model.addAttribute("hobbys", hobbys); model.addAttribute("carrers", new String[] { "教师", "学生", "coding搬运工", "IT民工", "其它" }); model.addAttribute("houseRegisters", new String[] { "北京", "上海", "广州", "深圳", "其它" });return "userAdd"; } }@RequestMapping(value = "/list")public String listUsers(Model model) { List<User> users = userService.getUsers(); model.addAttribute("users", users);return "userList"; }}

package pojo;

public class User {private String userName;private String[] hobby;//兴趣爱好private String[] friends;//朋友private String carrer;private String houseRegister;private String remark;public String getUserName() {return userName; }public void setUserName(String userName) {this.userName = userName; }public String[] getHobby() {return hobby; }public void setHobby(String[] hobby) {this.hobby = hobby; }public String[] getFriends() {return friends; }public void setFriends(String[] friends) {this.friends = friends; }public String getCarrer() {return carrer; }public void setCarrer(String carrer) {this.carrer = carrer; }public String getHouseRegister() {return houseRegister; }public void setHouseRegister(String houseRegister) {this.houseRegister = houseRegister; }public String getRemark() {return remark; }public void setRemark(String remark) {this.remark = remark; }}

package service;import java.util.ArrayList;import pojo.User;public interface UserService {boolean addUser(User u);ArrayList<User> getUsers();}

package service;import java.util.ArrayList;import org.springframework.stereotype.Service;import pojo.User;@Servicepublic class UserServiceImpl implements UserService{//使用静态集合变量users模拟数据库private static ArrayList<User> users = new ArrayList<User>();@Overridepublic boolean addUser(User u) {if(!"IT民工".equals(u.getCarrer())){//不允许添加IT民工 users.add(u);return true; }return false; }@Overridepublic ArrayList<User> getUsers() {return users; }}