Question

浏览论坛但没找到可以解决我问题的解决方案。共有2页：index.jsp - 包含要填充的表单和结果列表的起始页面; edit.jsp - 允许编辑index.jsp提供的结果列表中任何行的数据。当我在表单中填写所有成功提交的数据时，当我尝试编辑结果列表中的任何行时，我重定向到edit.jsp但是如果我提交更改则抛出异常：HTTP状态405 - 请求方法'POST'不支持。我很感激如何处理这个问题。

的index.jsp

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@taglib prefix="form" uri="http://www.springframework.org/tags/form" %>
<%@taglib prefix="s" uri="http://www.springframework.org/tags" %>
<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>

<html>
  <head>
    <title></title>
  </head>
  <body>
    <form:form method="post" action="add" modelAttribute="account">
        <table>
        <tr>
            <td><form:label path="number">Number</form:label></td>
            <td><form:input path="number"/></td>
        </tr>
        <tr>
            <td><form:label path="amount">Amount</form:label></td>
            <td><form:input path="amount"/></td>
        </tr>
        <tr>
            <td><form:label path="currency">Currency</form:label></td>
            <td><form:input path="currency"/></td>
        </tr>
        <tr>
            <td><form:label path="date">Date</form:label></td>
            <td><form:input path="date" type="date"/>
        </tr>
        </table>
        <input type="submit" value="Submit"/>
    </form:form>
    <table>
        <tr border="1">
            <td>Number</td>
            <td>Amount</td>
            <td>Currency</td>
            <td>Date</td>
        </tr>
        <c:forEach items="${listOfAccounts}" var="items">
        <tr border="1">
            <td>${items.number}</td>
            <td>${items.amount}</td>
            <td>${items.currency}</td>
            <td>${items.date}</td>
            <td><a href="<c:url value='edit/${items.id}'/>">edit</a></td>
        </tr>
        </c:forEach>
  </body>
</html>

edit.jsp文件

<%@ taglib prefix="form" uri="http://www.springframework.org/tags/form" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>

<html>
<head>
    <title>Edit Account</title>
</head>
<body>
    <form:form modelAttribute="account" method="post" action="edited">
        <form:hidden path="id" value="${account.id}"></form:hidden>
        <form:label path="number">Number</form:label>
        <form:input path="number" value="${account.number}"/><br>
        <form:label path="amount">Amount</form:label>
        <form:input path="amount" value="${account.amount}"/><br>
        <form:label path="currency">Currency</form:label>
        <form:input path="currency" value="${account.currency}"/><br>
        <form:label path="date">Date</form:label>
        <form:input path="date" type="date" value="${account.date}"/>
        <input type="submit" value="Submit"/>
    </form:form>
</body>
</html>

Controller.java

@Controller
public class AccountController {

    @Autowired
    private AccountService accountService;
    private Account account;

    @RequestMapping(value="/", method = RequestMethod.GET)
    public String welcomeMethod(ModelMap map) {
        Account account = new Account();
        map.addAttribute("account", account);
        map.addAttribute("listOfAccounts", accountService.getListOfAccounts());
        return "index";
    }

    @RequestMapping(value="add", method = RequestMethod.POST)
    public String addAccount(@ModelAttribute(value="account") Account account, ModelMap map) {
        accountService.addAccount(account);
        map.addAttribute("listOfAccounts", accountService.getListOfAccounts());
        return "index";
    }

    @RequestMapping(value="edit/{id}", method = RequestMethod.GET)
    public String editAccount(@PathVariable("id") int id, ModelMap model) {
        Account account = accountService.getAccountById(id);
        model.addAttribute("account", account);
        return "edit";
    }

    @RequestMapping(value="edited", method = RequestMethod.POST)
    public String updateAccount(@ModelAttribute(value="account") Account account, ModelMap map) {
        accountService.updateAccount(account);
        map.addAttribute("listOfAccounts", accountService.getListOfAccounts());
        return "index";
    }
}

Answer 1

您的问题是您在表单中使用相对映射，当您单击编辑时，您的URL变为/edit/{someid}并且您的edit.jsp表单已加载。当您编辑数据并单击“提交”时，您的URL将变为/edit/{someid}/edited，映射将与使用GET方法的/edit/{someid}处理程序方法匹配，这就是您收到错误的原因。

要解决此问题，请在edit.jsp中添加一个反斜杠来执行操作action="/edited"

希望有所帮助

Spring：请求方法＆＃39; POST＆＃39;不支持

1 个答案: