<!-- uildclassesspringmvc.xml --> <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation="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-4.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd"> <!-- 配置自动扫描的包 --> <context:component-scan base-package="com.atguigu.springmvc"></context:component-scan> <!-- 配置视图解析器 --> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/WEB-INF/views/"></property> <property name="suffix" value=".jsp"></property> </bean> <!-- default-servlet-handler 将在 SpringMVC 上下文中定义一个 DefaultServletHttpRequestHandler, 它会对进入 DispatcherServlet 的请求进行筛查, 如果发现是没有经过映射的请求, 就将该请求交由 WEB 应用服务器默认的 Servlet 处理. 如果不是静态资源的请求，才由 DispatcherServlet 继续处理 一般 WEB 应用服务器默认的 Servlet 的名称都是 default. 若所使用的 WEB 服务器的默认 Servlet 名称不是 default，则需要通过 default-servlet-name 属性显式指定 --> <mvc:default-servlet-handler/> <mvc:annotation-driven conversion-service="conversionService"></mvc:annotation-driven> <!-- 配置 ConversionService --> <bean id="conversionService" class="org.springframework.format.support.FormattingConversionServiceFactoryBean"> <property name="converters"> <set> <ref bean="employeeConverter"/> </set> </property> </bean> <!-- 配置国际化资源文件 --> <bean id="messageSource" class="org.springframework.context.support.ResourceBundleMessageSource"> <property name="basename" value="i18n"></property> </bean> <!-- 配置 SessionLocalResolver --> <bean id="localeResolver" class="org.springframework.web.servlet.i18n.SessionLocaleResolver"></bean> <mvc:interceptors> <!-- 配置自定义的拦截器 --> <bean class="com.atguigu.springmvc.interceptors.FirstInterceptor"></bean> <!-- 配置拦截器(不)作用的路径 --> <mvc:interceptor> <mvc:mapping path="/emps"/> <bean class="com.atguigu.springmvc.interceptors.SecondInterceptor"></bean> </mvc:interceptor> <!-- 配置 LocaleChanceInterceptor --> <bean class="org.springframework.web.servlet.i18n.LocaleChangeInterceptor"></bean> </mvc:interceptors> <!-- <mvc:view-controller path="/i18n" view-name="i18n"/> --> <mvc:view-controller path="/i18n2" view-name="i18n2"/> <!-- 配置 MultipartResolver --> <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> <property name="defaultEncoding" value="UTF-8"></property> <property name="maxUploadSize" value="1024000"></property> </bean> <!-- 配置使用 SimpleMappingExceptionResolver 来映射异常 --> <bean class="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver"> <property name="exceptionAttribute" value="ex"></property> <property name="exceptionMappings"> <props> <prop key="java.lang.ArrayIndexOutOfBoundsException">error</prop> </props> </property> </bean> </beans> <!-- srcspringmvc.xml --> <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation="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-4.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd"> <!-- 配置自动扫描的包 --> <context:component-scan base-package="com.atguigu.springmvc"></context:component-scan> <!-- 配置视图解析器 --> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/WEB-INF/views/"></property> <property name="suffix" value=".jsp"></property> </bean> <!-- default-servlet-handler 将在 SpringMVC 上下文中定义一个 DefaultServletHttpRequestHandler, 它会对进入 DispatcherServlet 的请求进行筛查, 如果发现是没有经过映射的请求, 就将该请求交由 WEB 应用服务器默认的 Servlet 处理. 如果不是静态资源的请求，才由 DispatcherServlet 继续处理 一般 WEB 应用服务器默认的 Servlet 的名称都是 default. 若所使用的 WEB 服务器的默认 Servlet 名称不是 default，则需要通过 default-servlet-name 属性显式指定 --> <mvc:default-servlet-handler/> <mvc:annotation-driven conversion-service="conversionService"></mvc:annotation-driven> <!-- 配置 ConversionService --> <bean id="conversionService" class="org.springframework.format.support.FormattingConversionServiceFactoryBean"> <property name="converters"> <set> <ref bean="employeeConverter"/> </set> </property> </bean> <!-- 配置国际化资源文件 --> <bean id="messageSource" class="org.springframework.context.support.ResourceBundleMessageSource"> <property name="basename" value="i18n"></property> </bean> <!-- 配置 SessionLocalResolver --> <bean id="localeResolver" class="org.springframework.web.servlet.i18n.SessionLocaleResolver"></bean> <mvc:interceptors> <!-- 配置自定义的拦截器 --> <bean class="com.atguigu.springmvc.interceptors.FirstInterceptor"></bean> <!-- 配置拦截器(不)作用的路径 --> <mvc:interceptor> <mvc:mapping path="/emps"/> <bean class="com.atguigu.springmvc.interceptors.SecondInterceptor"></bean> </mvc:interceptor> <!-- 配置 LocaleChanceInterceptor --> <bean class="org.springframework.web.servlet.i18n.LocaleChangeInterceptor"></bean> </mvc:interceptors> <!-- <mvc:view-controller path="/i18n" view-name="i18n"/> --> <mvc:view-controller path="/i18n2" view-name="i18n2"/> <!-- 配置 MultipartResolver --> <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> <property name="defaultEncoding" value="UTF-8"></property> <property name="maxUploadSize" value="1024000"></property> </bean> <!-- 配置使用 SimpleMappingExceptionResolver 来映射异常 --> <bean class="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver"> <property name="exceptionAttribute" value="ex"></property> <property name="exceptionMappings"> <props> <prop key="java.lang.ArrayIndexOutOfBoundsException">error</prop> </props> </property> </bean> </beans> <!-- WebContentWEB-INFweb.xml --> <?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5"> <!-- 配置 SpringMVC 的 DispatcherServlet --> <!-- The front controller of this Spring Web application, responsible for handling all application requests --> <servlet> <servlet-name>springDispatcherServlet</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:springmvc.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <!-- Map all requests to the DispatcherServlet for handling --> <servlet-mapping> <servlet-name>springDispatcherServlet</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <!-- 配置 HiddenHttpMethodFilter: 把 POST 请求转为 DELETE、PUT 请求 --> <filter> <filter-name>HiddenHttpMethodFilter</filter-name> <filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class> </filter> <filter-mapping> <filter-name>HiddenHttpMethodFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> </web-app>
# uildclassesi18n.properties NotEmpty.employee.lastName=^^LastName不能为空. Email.employee.email=Email地址不合法 Past.employee.birth=Birth不能是一个将来的时间. typeMismatch.employee.birth=Birth不是一个日期. i18n.user=User i18n.password=Password # uildclassesi18n_en_US.properties NotEmpty.employee.lastName=^^LastName不能为空. Email.employee.email=Email地址不合法 Past.employee.birth=Birth不能是一个将来的时间. typeMismatch.employee.birth=Birth不是一个日期. i18n.user=User i18n.password=Password # uildclassesi18n_zh_CN.properties NotEmpty.employee.lastName=^^LastName不能为空. Email.employee.email=Email地址不合法 Past.employee.birth=Birth不能是一个将来的时间. typeMismatch.employee.birth=Birth不是一个日期. i18n.user=用户名 i18n.password=密码 # srci18n.properties NotEmpty.employee.lastName=^^LastName不能为空. Email.employee.email=Email地址不合法 Past.employee.birth=Birth不能是一个将来的时间. typeMismatch.employee.birth=Birth不是一个日期. i18n.user=User i18n.password=Password # srci18n_en_US.properties NotEmpty.employee.lastName=^^LastName不能为空. Email.employee.email=Email地址不合法 Past.employee.birth=Birth不能是一个将来的时间. typeMismatch.employee.birth=Birth不是一个日期. i18n.user=User i18n.password=Password # srci18n_zh_CN.properties NotEmpty.employee.lastName=^^LastName不能为空. Email.employee.email=Email地址不合法 Past.employee.birth=Birth不能是一个将来的时间. typeMismatch.employee.birth=Birth不是一个日期. i18n.user=用户名 i18n.password=密码
// srccomatguiguspringmvcconvertersEmployeeConverter.java package com.atguigu.springmvc.converters; import org.springframework.core.convert.converter.Converter; import org.springframework.stereotype.Component; import com.atguigu.springmvc.crud.entities.Department; import com.atguigu.springmvc.crud.entities.Employee; @Component public class EmployeeConverter implements Converter<String, Employee> { @Override public Employee convert(String source) { if(source != null){ String [] vals = source.split("-"); //GG-gg@atguigu.com-0-105 if(vals != null && vals.length == 4){ String lastName = vals[0]; String email = vals[1]; Integer gender = Integer.parseInt(vals[2]); Department department = new Department(); department.setId(Integer.parseInt(vals[3])); Employee employee = new Employee(null, lastName, email, gender, department); System.out.println(source + "--convert--" + employee); return employee; } } return null; } } // srccomatguiguspringmvccruddaoDepartmentDao.java package com.atguigu.springmvc.crud.dao; import java.util.Collection; import java.util.HashMap; import java.util.Map; import org.springframework.stereotype.Repository; import com.atguigu.springmvc.crud.entities.Department; @Repository public class DepartmentDao { private static Map<Integer, Department> departments = null; static{ departments = new HashMap<Integer, Department>(); departments.put(101, new Department(101, "D-AA")); departments.put(102, new Department(102, "D-BB")); departments.put(103, new Department(103, "D-CC")); departments.put(104, new Department(104, "D-DD")); departments.put(105, new Department(105, "D-EE")); } public Collection<Department> getDepartments(){ return departments.values(); } public Department getDepartment(Integer id){ return departments.get(id); } } // srccomatguiguspringmvccruddaoEmployeeDao.java package com.atguigu.springmvc.crud.dao; import java.util.Collection; import java.util.HashMap; import java.util.Map; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Repository; import com.atguigu.springmvc.crud.entities.Department; import com.atguigu.springmvc.crud.entities.Employee; @Repository public class EmployeeDao { private static Map<Integer, Employee> employees = null; @Autowired private DepartmentDao departmentDao; static{ employees = new HashMap<Integer, Employee>(); employees.put(1001, new Employee(1001, "E-AA", "aa@163.com", 1, new Department(101, "D-AA"))); employees.put(1002, new Employee(1002, "E-BB", "bb@163.com", 1, new Department(102, "D-BB"))); employees.put(1003, new Employee(1003, "E-CC", "cc@163.com", 0, new Department(103, "D-CC"))); employees.put(1004, new Employee(1004, "E-DD", "dd@163.com", 0, new Department(104, "D-DD"))); employees.put(1005, new Employee(1005, "E-EE", "ee@163.com", 1, new Department(105, "D-EE"))); } private static Integer initId = 1006; public void save(Employee employee){ if(employee.getId() == null){ employee.setId(initId++); } employee.setDepartment(departmentDao.getDepartment(employee.getDepartment().getId())); employees.put(employee.getId(), employee); } public Collection<Employee> getAll(){ return employees.values(); } public Employee get(Integer id){ return employees.get(id); } public void delete(Integer id){ employees.remove(id); } } // srccomatguiguspringmvccrudentitiesDepartment.java package com.atguigu.springmvc.crud.entities; public class Department { private Integer id; private String departmentName; public Department() { // TODO Auto-generated constructor stub } public Department(int i, String string) { this.id = i; this.departmentName = string; } public Integer getId() { return id; } public void setId(Integer id) { this.id = id; } public String getDepartmentName() { return departmentName; } public void setDepartmentName(String departmentName) { this.departmentName = departmentName; } @Override public String toString() { return "Department [id=" + id + ", departmentName=" + departmentName + "]"; } } // srccomatguiguspringmvccrudentitiesEmployee.java package com.atguigu.springmvc.crud.entities; import java.util.Date; import javax.validation.constraints.Past; import org.hibernate.validator.constraints.Email; import org.hibernate.validator.constraints.NotEmpty; import org.springframework.format.annotation.DateTimeFormat; import org.springframework.format.annotation.NumberFormat; public class Employee { private Integer id; @NotEmpty private String lastName; @Email private String email; //1 male, 0 female private Integer gender; private Department department; @Past @DateTimeFormat(pattern="yyyy-MM-dd") private Date birth; @NumberFormat(pattern="#,###,###.#") private Float salary; public Integer getId() { return id; } public void setId(Integer id) { this.id = id; } public String getLastName() { return lastName; } public void setLastName(String lastName) { this.lastName = lastName; } public String getEmail() { return email; } public void setEmail(String email) { this.email = email; } public Integer getGender() { return gender; } public void setGender(Integer gender) { this.gender = gender; } public Department getDepartment() { return department; } public void setDepartment(Department department) { this.department = department; } public Date getBirth() { return birth; } public void setBirth(Date birth) { this.birth = birth; } public Float getSalary() { return salary; } public void setSalary(Float salary) { this.salary = salary; } @Override public String toString() { return "Employee [id=" + id + ", lastName=" + lastName + ", email=" + email + ", gender=" + gender + ", department=" + department + ", birth=" + birth + ", salary=" + salary + "]"; } public Employee(Integer id, String lastName, String email, Integer gender, Department department) { super(); this.id = id; this.lastName = lastName; this.email = email; this.gender = gender; this.department = department; } public Employee() { // TODO Auto-generated constructor stub } } // srccomatguiguspringmvccrudhandlersEmployeeHandler.java package com.atguigu.springmvc.crud.handlers; import java.util.Map; import javax.validation.Valid; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.validation.Errors; import org.springframework.validation.FieldError; import org.springframework.web.bind.annotation.ModelAttribute; import org.springframework.web.bind.annotation.PathVariable; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.RequestParam; import com.atguigu.springmvc.crud.dao.DepartmentDao; import com.atguigu.springmvc.crud.dao.EmployeeDao; import com.atguigu.springmvc.crud.entities.Employee; @Controller public class EmployeeHandler { @Autowired private EmployeeDao employeeDao; @Autowired private DepartmentDao departmentDao; @ModelAttribute public void getEmployee(@RequestParam(value="id",required=false) Integer id, Map<String, Object> map){ if(id != null){ map.put("employee", employeeDao.get(id)); } } @RequestMapping(value="/emp", method=RequestMethod.PUT) public String update(Employee employee){ employeeDao.save(employee); return "redirect:/emps"; } @RequestMapping(value="/emp/{id}", method=RequestMethod.GET) public String input(@PathVariable("id") Integer id, Map<String, Object> map){ map.put("employee", employeeDao.get(id)); map.put("departments", departmentDao.getDepartments()); return "input"; } @RequestMapping(value="/emp/{id}", method=RequestMethod.DELETE) public String delete(@PathVariable("id") Integer id){ employeeDao.delete(id); return "redirect:/emps"; } @RequestMapping(value="/emp", method=RequestMethod.POST) public String save(@Valid Employee employee, Errors result, Map<String, Object> map){ System.out.println("save: " + employee); if(result.getErrorCount() > 0){ System.out.println("出错了!"); for(FieldError error:result.getFieldErrors()){ System.out.println(error.getField() + ":" + error.getDefaultMessage()); } //若验证出错, 则转向定制的页面 map.put("departments", departmentDao.getDepartments()); return "input"; } employeeDao.save(employee); return "redirect:/emps"; } @RequestMapping(value="/emp", method=RequestMethod.GET) public String input(Map<String, Object> map){ map.put("departments", departmentDao.getDepartments()); map.put("employee", new Employee()); return "input"; } @RequestMapping("/emps") public String list(Map<String, Object> map){ map.put("employees", employeeDao.getAll()); return "list"; } // @InitBinder // public void initBinder(WebDataBinder binder){ // binder.setDisallowedFields("lastName"); // } } // srccomatguiguspringmvcinterceptorsFirstInterceptor.java package com.atguigu.springmvc.interceptors; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.springframework.web.servlet.HandlerInterceptor; import org.springframework.web.servlet.ModelAndView; public class FirstInterceptor implements HandlerInterceptor{ /** * 该方法在目标方法之前被调用. * 若返回值为 true, 则继续调用后续的拦截器和目标方法. * 若返回值为 false, 则不会再调用后续的拦截器和目标方法. * * 可以考虑做权限. 日志, 事务等. */ @Override public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception { System.out.println("[FirstInterceptor] preHandle"); return true; } /** * 调用目标方法之后, 但渲染视图之前. * 可以对请求域中的属性或视图做出修改. */ @Override public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception { System.out.println("[FirstInterceptor] postHandle"); } /** * 渲染视图之后被调用. 释放资源 */ @Override public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception { System.out.println("[FirstInterceptor] afterCompletion"); } } // srccomatguiguspringmvcinterceptorsSecondInterceptor.java package com.atguigu.springmvc.interceptors; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.springframework.web.servlet.HandlerInterceptor; import org.springframework.web.servlet.ModelAndView; public class SecondInterceptor implements HandlerInterceptor{ /** * 该方法在目标方法之前被调用. * 若返回值为 true, 则继续调用后续的拦截器和目标方法. * 若返回值为 false, 则不会再调用后续的拦截器和目标方法. * * 可以考虑做权限. 日志, 事务等. */ @Override public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception { System.out.println("[SecondInterceptor] preHandle"); return false; } /** * 调用目标方法之后, 但渲染视图之前. * 可以对请求域中的属性或视图做出修改. */ @Override public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception { System.out.println("[SecondInterceptor] postHandle"); } /** * 渲染视图之后被调用. 释放资源 */ @Override public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception { System.out.println("[SecondInterceptor] afterCompletion"); } } // srccomatguiguspringmvc estSpringMVCTest.java package com.atguigu.springmvc.test; import java.io.IOException; import java.io.InputStream; import java.util.Collection; import java.util.Date; import java.util.Locale; import java.util.Map; import javax.servlet.ServletContext; import javax.servlet.http.HttpSession; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.context.support.ResourceBundleMessageSource; import org.springframework.http.HttpHeaders; import org.springframework.http.HttpStatus; import org.springframework.http.ResponseEntity; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.ControllerAdvice; import org.springframework.web.bind.annotation.ExceptionHandler; import org.springframework.web.bind.annotation.RequestBody; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.RequestParam; import org.springframework.web.bind.annotation.ResponseBody; import org.springframework.web.bind.annotation.ResponseStatus; import org.springframework.web.multipart.MultipartFile; import org.springframework.web.servlet.ModelAndView; import com.atguigu.springmvc.crud.dao.EmployeeDao; import com.atguigu.springmvc.crud.entities.Employee; @Controller public class SpringMVCTest { @Autowired private EmployeeDao employeeDao; @Autowired private ResourceBundleMessageSource messageSource; @RequestMapping("/testSimpleMappingExceptionResolver") public String testSimpleMappingExceptionResolver(@RequestParam("i") int i){ String [] vals = new String[10]; System.out.println(vals[i]); return "success"; } @RequestMapping(value="/testDefaultHandlerExceptionResolver",method=RequestMethod.POST) public String testDefaultHandlerExceptionResolver(){ System.out.println("testDefaultHandlerExceptionResolver..."); return "success"; } @ResponseStatus(reason="测试",value=HttpStatus.NOT_FOUND) @RequestMapping("/testResponseStatusExceptionResolver") public String testResponseStatusExceptionResolver(@RequestParam("i") int i){ if(i == 13){ throw new UserNameNotMatchPasswordException(); } System.out.println("testResponseStatusExceptionResolver..."); return "success"; } // @ExceptionHandler({RuntimeException.class}) // public ModelAndView handleArithmeticException2(Exception ex){ // System.out.println("[出异常了]: " + ex); // ModelAndView mv = new ModelAndView("error"); // mv.addObject("exception", ex); // return mv; // } /** * 1. 在 @ExceptionHandler 方法的入参中可以加入 Exception 类型的参数, 该参数即对应发生的异常对象 * 2. @ExceptionHandler 方法的入参中不能传入 Map. 若希望把异常信息传导页面上, 需要使用 ModelAndView 作为返回值 * 3. @ExceptionHandler 方法标记的异常有优先级的问题. * 4. @ControllerAdvice: 如果在当前 Handler 中找不到 @ExceptionHandler 方法来出来当前方法出现的异常, * 则将去 @ControllerAdvice 标记的类中查找 @ExceptionHandler 标记的方法来处理异常. */ // @ExceptionHandler({ArithmeticException.class}) // public ModelAndView handleArithmeticException(Exception ex){ // System.out.println("出异常了: " + ex); // ModelAndView mv = new ModelAndView("error"); // mv.addObject("exception", ex); // return mv; // } @RequestMapping("/testExceptionHandlerExceptionResolver") public String testExceptionHandlerExceptionResolver(@RequestParam("i") int i){ System.out.println("result: " + (10 / i)); return "success"; } @RequestMapping("/testFileUpload") public String testFileUpload(@RequestParam("desc") String desc, @RequestParam("file") MultipartFile file) throws IOException{ System.out.println("desc: " + desc); System.out.println("OriginalFilename: " + file.getOriginalFilename()); System.out.println("InputStream: " + file.getInputStream()); return "success"; } @RequestMapping("/i18n") public String testI18n(Locale locale){ String val = messageSource.getMessage("i18n.user", null, locale); System.out.println(val); return "i18n"; } @RequestMapping("/testResponseEntity") public ResponseEntity<byte[]> testResponseEntity(HttpSession session) throws IOException{ byte [] body = null; ServletContext servletContext = session.getServletContext(); InputStream in = servletContext.getResourceAsStream("/files/abc.txt"); body = new byte[in.available()]; in.read(body); HttpHeaders headers = new HttpHeaders(); headers.add("Content-Disposition", "attachment;filename=abc.txt"); HttpStatus statusCode = HttpStatus.OK; ResponseEntity<byte[]> response = new ResponseEntity<byte[]>(body, headers, statusCode); return response; } @ResponseBody @RequestMapping("/testHttpMessageConverter") public String testHttpMessageConverter(@RequestBody String body){ System.out.println(body); return "helloworld! " + new Date(); } @ResponseBody @RequestMapping("/testJson") public Collection<Employee> testJson(){ return employeeDao.getAll(); } @RequestMapping("/testConversionServiceConverer") public String testConverter(@RequestParam("employee") Employee employee){ System.out.println("save: " + employee); employeeDao.save(employee); return "redirect:/emps"; } } // srccomatguiguspringmvc estSpringMVCTestExceptionHandler.java package com.atguigu.springmvc.test; import org.springframework.web.bind.annotation.ControllerAdvice; import org.springframework.web.bind.annotation.ExceptionHandler; import org.springframework.web.servlet.ModelAndView; @ControllerAdvice public class SpringMVCTestExceptionHandler { @ExceptionHandler({ArithmeticException.class}) public ModelAndView handleArithmeticException(Exception ex){ System.out.println("----> 出异常了: " + ex); ModelAndView mv = new ModelAndView("error"); mv.addObject("exception", ex); return mv; } } // srccomatguiguspringmvc estUserNameNotMatchPasswordException.java package com.atguigu.springmvc.test; import org.springframework.http.HttpStatus; import org.springframework.web.bind.annotation.ResponseStatus; @ResponseStatus(value=HttpStatus.FORBIDDEN, reason="用户名和密码不匹配!") public class UserNameNotMatchPasswordException extends RuntimeException{ /** * */ private static final long serialVersionUID = 1L; }
<!-- WebContentindex.jsp --> <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Insert title here</title> <script type="text/javascript" src="scripts/jquery-1.9.1.min.js"></script> <script type="text/javascript"> $(function(){ $("#testJson").click(function(){ var url = this.href; var args = {}; $.post(url, args, function(data){ for(var i = 0; i < data.length; i++){ var id = data[i].id; var lastName = data[i].lastName; alert(id + ": " + lastName); } }); return false; }); }) </script> </head> <body> <form action="testFileUpload" method="POST" enctype="multipart/form-data"> File: <input type="file" name="file"/> Desc: <input type="text" name="desc"/> <input type="submit" value="Submit"/> </form> <br><br> <a href="emps">List All Employees</a> <br><br> <a href="testJson" id="testJson">Test Json</a> <br><br> <form action="testHttpMessageConverter" method="POST" enctype="multipart/form-data"> File: <input type="file" name="file"/> Desc: <input type="text" name="desc"/> <input type="submit" value="Submit"/> </form> <br><br> <a href="testResponseEntity">Test ResponseEntity</a> <!-- 关于国际化: 1. 在页面上能够根据浏览器语言设置的情况对文本(不是内容), 时间, 数值进行本地化处理 2. 可以在 bean 中获取国际化资源文件 Locale 对应的消息 3. 可以通过超链接切换 Locale, 而不再依赖于浏览器的语言设置情况 解决: 1. 使用 JSTL 的 fmt 标签 2. 在 bean 中注入 ResourceBundleMessageSource 的示例, 使用其对应的 getMessage 方法即可 3. 配置 LocalResolver 和 LocaleChangeInterceptor --> <br><br> <a href="i18n">I18N PAGE</a> <br><br> <a href="testExceptionHandlerExceptionResolver?i=10">Test ExceptionHandlerExceptionResolver</a> <br><br> <a href="testResponseStatusExceptionResolver?i=10">Test ResponseStatusExceptionResolver</a> <br><br> <a href="testDefaultHandlerExceptionResolver">Test DefaultHandlerExceptionResolver</a> <br><br> <a href="testSimpleMappingExceptionResolver?i=2">Test SimpleMappingExceptionResolver</a> </body> </html> <!-- WebContentWEB-INFviewserror.jsp --> <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Insert title here</title> </head> <body> <h4>Error Page</h4> ${requestScope.exception } </body> </html> <!-- WebContentWEB-INFviewsi18n.jsp --> <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Insert title here</title> </head> <body> <fmt:message key="i18n.user"></fmt:message> <br><br> <a href="i18n2">I18N2 PAGE</a> <br><br> <a href="i18n?locale=zh_CH">中文</a> <br><br> <a href="i18n?locale=en_US">英文</a> </body> </html> <!-- WebContentWEB-INFviewsi18n2.jsp --> <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Insert title here</title> </head> <body> <fmt:message key="i18n.password"></fmt:message> <br><br> <a href="i18n">I18N PAGE</a> </body> </html> <!-- WebContentWEB-INFviewsinput.jsp --> <%@page import="java.util.HashMap"%> <%@page import="java.util.Map"%> <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@ taglib prefix="form" uri="http://www.springframework.org/tags/form" %> <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Insert title here</title> </head> <body> <form action="testConversionServiceConverer" method="POST"> <!-- lastname-email-gender-department.id 例如: GG-gg@atguigu.com-0-105 --> Employee: <input type="text" name="employee"/> <input type="submit" value="Submit"/> </form> <br><br> <!-- 1. WHY 使用 form 标签呢 ? 可以更快速的开发出表单页面, 而且可以更方便的进行表单值的回显 2. 注意: 可以通过 modelAttribute 属性指定绑定的模型属性, 若没有指定该属性，则默认从 request 域对象中读取 command 的表单 bean 如果该属性值也不存在，则会发生错误。 --> <br><br> <form:form action="${pageContext.request.contextPath }/emp" method="POST" modelAttribute="employee"> <form:errors path="*"></form:errors> <br> <c:if test="${employee.id == null }"> <!-- path 属性对应 html 表单标签的 name 属性值 --> LastName: <form:input path="lastName"/> <form:errors path="lastName"></form:errors> </c:if> <c:if test="${employee.id != null }"> <form:hidden path="id"/> <input type="hidden" name="_method" value="PUT"/> <%-- 对于 _method 不能使用 form:hidden 标签, 因为 modelAttribute 对应的 bean 中没有 _method 这个属性 --%> <%-- <form:hidden path="_method" value="PUT"/> --%> </c:if> <br> Email: <form:input path="email"/> <form:errors path="email"></form:errors> <br> <% Map<String, String> genders = new HashMap(); genders.put("1", "Male"); genders.put("0", "Female"); request.setAttribute("genders", genders); %> Gender: <br> <form:radiobuttons path="gender" items="${genders }" delimiter="<br>"/> <br> Department: <form:select path="department.id" items="${departments }" itemLabel="departmentName" itemValue="id"></form:select> <br> <!-- 1. 数据类型转换 2. 数据类型格式化 3. 数据校验. 1). 如何校验 ? 注解 ? ①. 使用 JSR 303 验证标准 ②. 加入 hibernate validator 验证框架的 jar 包 ③. 在 SpringMVC 配置文件中添加 <mvc:annotation-driven /> ④. 需要在 bean 的属性上添加对应的注解 ⑤. 在目标方法 bean 类型的前面添加 @Valid 注解 2). 验证出错转向到哪一个页面 ? 注意: 需校验的 Bean 对象和其绑定结果对象或错误对象时成对出现的，它们之间不允许声明其他的入参 3). 错误消息 ? 如何显示, 如何把错误消息进行国际化 --> Birth: <form:input path="birth"/> <form:errors path="birth"></form:errors> <br> Salary: <form:input path="salary"/> <br> <input type="submit" value="Submit"/> </form:form> </body> </html> <!-- WebContentWEB-INFviewslist.jsp --> <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Insert title here</title> <!-- SpringMVC 处理静态资源: 1. 为什么会有这样的问题: 优雅的 REST 风格的资源URL 不希望带 .html 或 .do 等后缀 若将 DispatcherServlet 请求映射配置为 /, 则 Spring MVC 将捕获 WEB 容器的所有请求, 包括静态资源的请求, SpringMVC 会将他们当成一个普通请求处理, 因找不到对应处理器将导致错误。 2. 解决: 在 SpringMVC 的配置文件中配置 <mvc:default-servlet-handler/> --> <script type="text/javascript" src="scripts/jquery-1.9.1.min.js"></script> <script type="text/javascript"> $(function(){ $(".delete").click(function(){ var href = $(this).attr("href"); $("form").attr("action", href).submit(); return false; }); }) </script> </head> <body> <form action="" method="POST"> <input type="hidden" name="_method" value="DELETE"/> </form> <c:if test="${empty requestScope.employees }"> 没有任何员工信息. </c:if> <c:if test="${!empty requestScope.employees }"> <table border="1" cellpadding="10" cellspacing="0"> <tr> <th>ID</th> <th>LastName</th> <th>Email</th> <th>Gender</th> <th>Department</th> <th>Edit</th> <th>Delete</th> </tr> <c:forEach items="${requestScope.employees }" var="emp"> <tr> <td>${emp.id }</td> <td>${emp.lastName }</td> <td>${emp.email }</td> <td>${emp.gender == 0 ? 'Female' : 'Male' }</td> <td>${emp.department.departmentName }</td> <td><a href="emp/${emp.id}">Edit</a></td> <td><a class="delete" href="emp/${emp.id}">Delete</a></td> </tr> </c:forEach> </table> </c:if> <br><br> <a href="emp">Add New Employee</a> </body> </html> <!-- WebContentWEB-INFviewssuccess.jsp --> <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Insert title here</title> </head> <body> <h4>Success Page</h4> </body> </html>