SSH框架整合例子(struts2+spring2+hibernate3)

package com.cd.action.user; // struts找到com.cd.action为命名空间的根，则当前包的命名空间为/user import java.util.ArrayList; import java.util.List; import org.apache.log4j.Logger; import org.apache.struts2.convention.annotation.Action; import org.apache.struts2.convention.annotation.ExceptionMapping; import org.apache.struts2.convention.annotation.Namespace; import org.apache.struts2.convention.annotation.ParentPackage; import org.apache.struts2.convention.annotation.Result; import org.springframework.stereotype.Controller; import com.cd.entity.User; import com.cd.service.UserService; import com.opensymphony.xwork2.validator.annotations.RegexFieldValidator; import com.opensymphony.xwork2.validator.annotations.RequiredStringValidator; import com.opensymphony.xwork2.validator.annotations.Validations; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.context.annotation.Scope; /** * Struts2 零配置插件convention-plugin就会让Struts自己创建线程安全的Action实例，而不用Spring创建，并且可以接收Spring注入的Service * Struts2用了注解后，Action则不用Spring管理了 * 如果加了 @Controller不加@Scope，Spring容器在初始化的时候会创建一个单例模式的userAction，可以将日志级别设置为Debug模式查看创建的bean * Spring创建的这个userAction实际上沿用任何用处，因为struts2的Action不是由Spring管理创建的 * 可以通过在方法内加log.error("Hash Code = " + hashCode());发现每次执行hashCode不一样，说明这时Action是prototype的 * 所以Strut2采用了零配置注解后，Action不是由Spring管理的 */ // @Scope("singleton") // 指定singleton仍然是prototype，xml则必须指定为prototype // @Controller //用了struts2注解就可以不用加@controller和@scope了 @ParentPackage("struts-default") // @Namespace("/user") // 验证可以用注解，也可以使用XML配置 // @Validations(requiredStrings = { // @RequiredStringValidator(fieldName = "username", message = "用户名不能为空"), // @RequiredStringValidator(fieldName = "age", message = "年龄不能为空") }, regexFields = { @RegexFieldValidator(fieldName = "age", expression = "^\\d{3}$", message = "年龄输入有误") }) public class UserAction { private Integer userid; private String username; private Integer age; private String sex; private Logger log = Logger.getLogger(getClass()); private String message; private List<User> users = new ArrayList<User>(0); @Autowired() private UserService userService; public UserAction() { } public Integer getUserid() { return userid; } public void setUserid(Integer userid) { this.userid = userid; } public String getUsername() { return username; } public void setUsername(String username) { this.username = username; } public Integer getAge() { return age; } public void setAge(Integer age) { this.age = age; } public String getSex() { return sex; } public void setSex(String sex) { this.sex = sex; } public String getMessage() { return message; } public void setMessage(String message) { this.message = message; } public List<User> getUsers() { return users; } public void setUsers(List<User> users) { this.users = users; } public void setUserService(UserService userService) { this.userService = userService; } public UserService getUserService() { return userService; } @Action(value = "add", results = { @Result(name = "success", location = "/user/result.jsp"), @Result(name = "input", location = "/user/userAdd.jsp") }) // @Validations(requiredStrings = { // @RequiredStringValidator(fieldName = "username", message = "用户名不能为空"), // @RequiredStringValidator(fieldName = "age", message = "年龄不能为空") }) // 该方法上面的验证对其它方法也有影响 public String add() { String msg = "success"; try { userService.save(this); message = "添加成功"; } catch (Exception e) { message = "添加失败"; e.printStackTrace(); } return msg; } @Action(value = "findAll", results = { @Result(name = "success", location = "/user/userList.jsp"), @Result(name = "error", location = "/user/result.jsp") }, exceptionMappings = { @ExceptionMapping(exception = "java.lang.RuntimeException", result = "error"), @ExceptionMapping(exception = "java.lang.Exception", result = "error") }) public String findAll() { String msg = "success"; try { users = userService.findAll(); if (users == null) { msg = "error"; } } catch (RuntimeException e) { msg = "error"; e.printStackTrace(); message = "RuntimeException查询失败，请重试！" + e.getMessage(); } catch (Exception e) { msg = "error"; message = "Exception查询失败，请重试！" + e.getMessage(); e.printStackTrace(); } return msg; } @Action(value = "deleteUserById", results = { @Result(name = "success", location = "/user/result.jsp"), @Result(name = "error", location = "/user/result.jsp") }, exceptionMappings = { @ExceptionMapping(exception = "java.lang.Exception", result = "error") }) public String deleteUserById() { String msg = "success"; try { userService.deleteUserById(this); message = "删除成功"; } catch (Exception e) { msg = "error"; message = "删除异常"; e.printStackTrace(); } return msg; } @Action(value = "updateUserById", results = { @Result(name = "success", location = "/user/result.jsp"), @Result(name = "error", location = "/user/result.jsp") }, exceptionMappings = { @ExceptionMapping(exception = "java.lang.Exception", result = "error") }) public String updateUserById() { String msg = "success"; try { userService.updateUserById(this); message = "更新成功"; } catch (Exception e) { msg = "error"; message = "更新异常"; e.printStackTrace(); } return msg; } }