【发布时间】：2017-08-31 10:29:42
【问题描述】：
我在提交表单时收到错误响应 400。我有一个工作正常的表单，然后我添加了一个下拉列表，该列表从 DB 向用户显示性别。下拉菜单正确显示数据，但是当我提交表单时出现错误。这仅在我添加下拉列表时发生。
RegistrationController.java :-
@Controller
public class RegistrationController {
final static Logger logger = Logger.getLogger(RegistrationController.class);
private StaffService staffService;
@Autowired
private GenderDao genderDao;
@Autowired
public RegistrationController(StaffService staffService) {
this.staffService = staffService;
}
@RequestMapping(method = RequestMethod.GET, value = "/register")
public String registerStaffPage(Model model) {
List<Gender> genders = genderDao.findAll();
Iterator<Gender> genderIterators = genders.iterator();
Map<Gender, String> genderMap = new LinkedHashMap<Gender, String>();
while (genderIterators.hasNext()) {
Gender gender = genderIterators.next();
genderMap.put(gender, gender.getGender());
}
model.addAttribute("gendersMap",genderMap);
model.addAttribute("staffRegistrationBean", new StaffRegistrationBean());
return "register";
}
@RequestMapping(method = RequestMethod.POST, value = "/registerStaff")
public String registerStaff(@ModelAttribute("staffRegistrationBean") StaffRegistrationBean staffRegistrationBean,
@Valid StaffRegistrationBean staffRegistrationBeans, Errors errors, Model model) {
// if (errors.hasErrors())
// return "register";
staffService.createStaff(staffRegistrationBean);
return "RegistrationDone";
}
@PostConstruct
public void init() {
logger.debug("RegistrationController Bean has been Initialized.");
}
@PreDestroy
public void destroy() {
logger.debug("RegistrationController Bean has been Destroyed.");
}
}
StaffRegistrationBean.java
public class StaffRegistrationBean {
private String userName;
private String password;
private String firstName;
private String lastName;
private String email;
private String Organization;
private String phoneNo;
private Gender gender;
// getter and setter follows
}
regsiter.jsp
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<%@ taglib uri="http://www.springframework.org/tags/form" prefix="form"%>
<%@ taglib prefix="spring" uri="http://www.springframework.org/tags"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%@ page isELIgnored="false"%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Registration</title>
</head>
<body>
<h1>Registration Form</h1>
<form:form id="regForm" modelAttribute="staffRegistrationBean"
action="registerStaff" method="post">
<table>
<tr>
<td><form:label path="userName" cssErrorClass="error">
<spring:message code="userName" /> :
</form:label> <form:input path="userName" name="username" id="username"
cssErrorClass="error" /></td>
</tr>
<tr>
<td>Gender: <form:select path="gender">
<form:options items="${gendersMap}" />
</form:select>
</td>
</tr>
<tr>
<td><form:label path="organization" cssErrorClass="error">
<spring:message code="organizationName" /> :
</form:label> <form:input path="organization" name="username" id="organization"
cssErrorClass="error" /></td>
</tr>
<tr>
<td><form:label path="password" cssErrorClass="error">
<spring:message code="password" /> :
</form:label> <form:input path="password" name="password" id="password"
cssErrorClass="error" /></td>
</tr>
<tr>
<td><form:label path="firstName" cssErrorClass="error">
<spring:message code="firstName" /> :
</form:label> <form:input path="firstName" name="firstname" id="firstname"
cssErrorClass="error" /></td>
</tr>
<tr>
<td><form:label path="lastName" cssErrorClass="error">
<spring:message code="lastName" /> :
</form:label> <form:input path="lastName" name="lastname" id="lastname"
cssErrorClass="error" /></td>
</tr>
<%-- <tr>
<td><form:label path="gender">
<spring:message code="gender" /> : </form:label>
<td><form:select path="${gender}">
<form:options items="${genderList}" id="id" itemValue="gender">
</form:options>
</form:select></td>
</tr> --%>
<tr>
<td><form:label path="email" cssErrorClass="error">
<spring:message code="email" /> :
</form:label> <form:input path="email" name="email" id="email"
cssErrorClass="error" /></td>
</tr>
<tr>
<td><form:label path="phoneNo" cssErrorClass="error">
<spring:message code="phoneNo" /> :
</form:label> <form:input path="phoneNo" name="phoneNo" id="phoneNo"
cssErrorClass="error" /></td>
</tr>
<tr>
<td></td>
<td><input type="submit" value="register"></td>
</tr>
</table>
</form:form>
</body>
</html>
**
- 错误：-
**
HTTP 状态 400 - 错误请求
类型状态报告
描述 由于被认为是客户端错误（例如，格式错误的请求语法、无效的请求消息帧或欺骗性请求路由），服务器无法或不会处理请求。
GenderMap 是具有要在屏幕上显示的模型的地图。关键是性别类，值是性别描述。用户将选择一个性别，该性别将引用性别表中的 id。
完整代码可在 -https://github.com/iftekharkhan09/ExpenseCalculator_Nex_Gen/tree/DevBranch 获得
转到 URL - localhost:8080/ExpenseCalculator/register
我们将不胜感激。
【问题讨论】：
-
我认为 action="registerStaff" 没有指向方法
-
@Ali.Mojtehedy 不。错误的 URL 返回 404，但 OP 得到 400。
-
A Http 400 可能由于错误的请求负载对象而发生。在您的情况下是 Staffregistrationbean。在这个类中，您定义了一个类型为 Gender 的变量性别，但我猜在您的 jsp 中您只需提交一个字符串？
标签： spring jsp spring-mvc jstl