又见The request sent by the client was syntactically incorrect ()
前几天遇到过这个问题(Ref:http://www.cnblogs.com/xiandedanteng/p/4168609.html),问题在页面的组件name和和注解的@param名匹配不对,这个好解决,一一对好就行了。
但是,这回情况不一样了,我的页面控件是类似这样的:
<p style="height:280px;display:block;">
<span class="req">
<label><input type="checkbox" value="A" name="to" /> A</label>
<label><input type="checkbox" value="B" name="to" /> B</label>
<label><input type="checkbox" value="C" name="to" /> C</label>
</span>
<label><span></span></label>
</p>
而控制器是这样写的:
@RequestMapping(value="/sendEmailReport")
public String sendEmailReport(@RequestParam("idTxt") String id,
@RequestParam("to") String[] to,
@RequestParam("cc") String[] cc,
@RequestParam("bcc") String[] bcc,
HttpServletRequest request,
HttpServletResponse response){
。。。
}
看,to部分对应一点没错,但是,问题来了,如果name为to的一组复选框一个都没有选中的话,那么,提交页面后就会报The request sent by the client was syntactically incorrect ()错误。
但是,如果哪怕只要选中一个,程序就正常运行了。
我是通过添加一个默认的隐藏的选中复选框来避免这个错误的,代码如下:
<p style="height:280px;display:block;">
<span class="req">
<label><input type="checkbox" value="A" name="to" /> A</label>
<label><input type="checkbox" value="B" name="to" /> B</label>
<label><input type="checkbox" value="C" name="to" /> C</label>
<label><input type="checkbox" value="" checked name="to" style="display:none;"/></label>
</span>
<label><span></span></label>
</p>
这样,这组复选框就不必非要选中一个了,当然,后台需要添加点过滤措施。
应该是SpringMVC自身的问题,希望它能修正这个Bug。
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