我有一个弹簧控制器，其后端点接收到
WordDtoWordDtoModelMapWordDto但我不知道，如何将
WordDto @GetMapping("/generate")
public String generateWords(ModelMap model, @RequestParam(value = "language", defaultValue = "-1", required = false) long language, @RequestParam(value = "amount", defaultValue = "-1", required = false) int amount)
{
model.put("language", language);
model.put("amount", amount);
LanguageData languageData = languageService.getLanguageData(language);
model.put("languageName", languageData.getName());
model.put("words", generationService.generateWords(language, amount));
return "list-words";
}
@PostMapping("word")
public String saveWord(ModelMap model, HttpServletRequest request, @Valid WordDto singleWord)
{
translationService.saveOrGetWord(singleWord);
return "redirect:" + request.getHeader("Referer");
}
<body>
<%--@elvariable id="languageName" type="java.lang.String"--%>
<h1>Generated words with '${languageName}'</h1>
<table class="table">
<thead>
<tr>
<th>Word</th>
</tr>
</thead>
<tbody>
<%--@elvariable id="words" type="java.util.List"--%>
<c:forEach items="${words}" var="singleWord">
<tr>
<td>
${singleWord.word}
</td>
<td>
<form:form method="post" action="word" modelAttribute="singleWord.word">
<form:input type="hidden" path="languageId"/>
<form:input type="text" path="word"/>
</form:form>
</td>
</tr>
</c:forEach>
</tbody>
</table>
</body>
如何将 jsp 表中连续的
WordDto/word我成功了，但只是采用了不同的方法，（在我看来）这并不像我最初计划的那么好。新版本需要两个参数，而不是一次接受整个对象。
我将表格调整为如下所示：
<tbody>
<%--@elvariable id="words" type="java.util.List"--%>
<c:forEach items="${words}" var="singleWord" varStatus="status">
<tr>
<form:form method="post" action="word">
<input type="hidden" name="languageId" value="${singleWord.languageId}"/>
<td>
<label>
<input type="text" name="word" value="${singleWord.word}"/>
</label>
</td>
<td>
<%--TODO: Add button to show translation page for this word (Should also save the word before showing the page, if it is not yet saved)--%>
</td>
<td>
<input type="submit" class="btn-success" value="Save">
</td>
</form:form>
</tr>
</c:forEach>
</tbody
端点也必须修改：
@PostMapping("word")
public String saveWord(HttpServletRequest request, @RequestParam(value = "languageId") long languageId, @RequestParam(value = "word") String word)
{
translationService.saveOrGetWord(new WordDto(languageId, word));
return "redirect:" + request.getHeader("Referer");
}