那些遇到过的问题

org.apache.struts2.json.JSONException:属性的不兼容类型

Tin*_*iny 11 jquery json struts2 json-rpc struts2-json-plugin

我收到一个java.util.List<Object[]>via JSON-rpc作为JavaScript数组,如下所示.

[
    [1, 0.10, 1.00],
    [2, 0.20, 2.00],
    [3, 0.30, 3.00],
    [4, 0.40, 4.00],
    [5, 0.50, 5.00],
    [6, 0.60, 6.00],
    [7, 0.70, 7.00],
    [8, 0.80, 8.00],
    [9, 0.90, 9.00],
    [10, 1.00, 10.00],
    [11, 1.10, 11.00],
    [12, 1.20, 12.00],
    [13, 1.30, 13.00],
    [14, 1.40, 14.00],
    [15, 1.50, 15.00],
    [16, 1.60, 16.00],
    [17, 1.70, 17.00],
    [18, 1.80, 18.00]
]
Run Code Online (Sandbox Code Playgroud)

我需要将同一个数组传递回服务器(在最后一个维度稍作修改).

我使用以下函数发回这个数组.

var request;
var timeout;
var itemsArray=[];

function insert()
{
    if(!request)
    {
        var i=0;

        $('input[name="txtCharge[]"]').each(function()
        {
            isNaN($(this).val())||$(this).val()===''?itemsArray[i][2]='':itemsArray[i][2]=eval(eval($(this).val()).toFixed(2));
            i++;
        });

        request = $.ajax({
            dataType:"json",
            type: "POST",
            data: JSON.stringify({jsonrpc:'2.0', method:'insertZoneCharges', id:'jsonrpc', params:[itemsArray]}),
            contentType: "application/json-rpc; charset=utf-8",
            url: "AddZoneChargeList",

            success: function(response)
            {
                alert(response.result);
            },
            complete: function()
            {
                timeout = request = null;
            },
            error: function(request, status, error)
            {
                if(status!=="timeout"&&status!=="abort")
                {
                    alert(status+" : "+error);
                }
            }
        });
        timeout2 = setTimeout(function() {
            if(request)
            {
                request.abort();
                alert("The request has been timed out.");
            }
        }, 300000);
    }
}
Run Code Online (Sandbox Code Playgroud)

itemsArray循环后数组的结构与第一个代码段中提到的完全相同.

该jQuery函数调用的方法如下.

@Namespace("/admin_side")
@ResultPath("/WEB-INF/content")
@ParentPackage(value="json-default")
public final class ZoneCharge extends ActionSupport implements Serializable
{
    private static final long serialVersionUID = 1L;

    public ZoneCharge() {}

    //This method is invoked by the given jQuery function. 
    //It should accept the array as a parameter of type List<Object[]> but it doesn't.
    @SMDMethod
    public String insertZoneCharges(@SMDMethodParameter(name="list")List<Object[]> list)
    {
        for(Object[]o:list)
        {
            System.out.println(o[0]+" : "+o[1]+" : "+o[2]);
        }
        return "The action completed successfully.";
    }

    @Action(value = "AddZoneChargeList",
    results = {
        @Result(name = ActionSupport.SUCCESS, type = "json", params = {"enableSMD", "true"})},
    interceptorRefs = {
        @InterceptorRef(value = "json", params = {"enableSMD", "true"})})
    public String insertAction() throws Exception {
        return ActionSupport.SUCCESS;
    }
}
Run Code Online (Sandbox Code Playgroud)

尝试发出请求时,会引发以下异常.

Feb 19, 2014 6:14:00 AM org.apache.struts2.json.rpc.RPCError error
SEVERE: Incompatible types for property insertZoneCharges
org.apache.struts2.json.JSONException: Incompatible types for property insertZoneCharges
    at org.apache.struts2.json.JSONPopulator.convertToCollection(JSONPopulator.java:254)
    at org.apache.struts2.json.JSONPopulator.convert(JSONPopulator.java:131)
    at org.apache.struts2.json.JSONInterceptor.invoke(JSONInterceptor.java:242)
    at org.apache.struts2.json.JSONInterceptor.intercept(JSONInterceptor.java:133)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
    at org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:54)
    at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:562)
    at org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77)
    at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:99)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at filter.NoCacheFilter.doFilter(NoCacheFilter.java:25)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
    at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:118)
    at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:84)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
    at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
    at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:103)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
    at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
    at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:154)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
    at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:45)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
    at org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilter(BasicAuthenticationFilter.java:150)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
    at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:199)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
    at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:110)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
    at org.springframework.security.web.csrf.CsrfFilter.doFilterInternal(CsrfFilter.java:105)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:108)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
    at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:57)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:108)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
    at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:50)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:108)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
    at org.springframework.security.web.session.ConcurrentSessionFilter.doFilter(ConcurrentSessionFilter.java:125)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
    at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
    at org.springframework.security.web.access.channel.ChannelProcessingFilter.doFilter(ChannelProcessingFilter.java:144)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
    at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:192)
    at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:160)
    at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:344)
    at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:261)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at org.springframework.web.multipart.support.MultipartFilter.doFilterInternal(MultipartFilter.java:119)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:108)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:936)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1004)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
    at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:1822)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
    at java.lang.Thread.run(Thread.java:722)
Run Code Online (Sandbox Code Playgroud)

为什么这个数组没有被映射到List<Object[]>,当它List<Object[]>从服务器接收响应时正确映射到一个数组(这是由一个单独的jQuery函数完成的,这个问题没有涉及)？

编辑1:

以下一行,

data: JSON.stringify({jsonrpc:'2.0', method:'insertZoneCharges', id:'jsonrpc', params:[itemsArray]})
Run Code Online (Sandbox Code Playgroud)

在给定的jQuery函数中对应于以下字符串.

{
    "jsonrpc": "2.0",
    "method": "insertZoneCharges",
    "id": "jsonrpc",
    "params": [
        [
            [1, 0.1, 1],
            [2, 0.2, 2],
            [3, 0.3, 3],
            [4, 0.4, 4],
            [5, 0.5, 5],
            [6, 0.6, 6],
            [7, 0.7, 7],
            [8, 0.8, 8],
            [9, 0.9, 9],
            [10, 1, 10],
            [11, 1.1, 11],
            [12, 1.2, 12],
            [13, 1.3, 13],
            [14, 1.4, 14],
            [15, 1.5, 15],
            [16, 1.6, 16],
            [17, 1.7, 17],
            [18, 1.8, 18]
        ]
    ]
}
Run Code Online (Sandbox Code Playgroud)

这似乎是有效的,应该正确映射到java.util.List<Object[]>而不会导致异常.

编辑2:

这在删除泛型类型参数时有效,因此列表只是List(而不是<List<Object[]>>)或参数的类型为List<List<Object>>.就像是,

@SMDMethod
public String insertZoneCharges(@SMDMethodParameter(name="list")List<List<Object>> list)
{
    for(List<Object> o:list)
    {
        System.out.println(o);
    }
    return "The action completed successfully.";
}
Run Code Online (Sandbox Code Playgroud)

循环显示以下输出.

[1, 0.1, 1]
[2, 0.2, 2]
[3, 0.3, 3]
[4, 0.4, 4]
[5, 0.5, 5]
[6, 0.6, 6]
[7, 0.7, 7]
[8, 0.8, 8]
[9, 0.9, 9]
[10, 1, 10]
[11, 1.1, 11]
[12, 1.2, 12]
[13, 1.3, 13]
[14, 1.4, 14]
[15, 1.5, 15]
[16, 1.6, 16]
[17, 1.7, 17]
[18, 1.8, 18]
Run Code Online (Sandbox Code Playgroud)

查看输出,JSON数组应该正确映射到List<Object[]>但不会发生.

编辑3 :(不是实质性的编辑).

虽然实际的数组在给定的jQuery函数中是不可见的,但这可以通过以下jQuery函数简单地重现.

function insert()
{
    var a=[[1, 2], [3, 4]];  //Array.

    $.ajax({
            dataType:"json",
            type: "POST",
            data: JSON.stringify({jsonrpc:'2.0', method:'insertZoneCharges', id:'jsonrpc', params:[a]}),
            contentType: "application/json-rpc; charset=utf-8",
            url: "AddZoneChargeList",
            success: function(response)
            {
                alert(response.result);
            },
            complete: function()
            {
                //Do something.
            },
            error: function(request, status, error)
            {
                //Do something.
            }
        });
    }
}
Run Code Online (Sandbox Code Playgroud)

并且SMD方法的预期方法参数可以是java.util.List<Object[]>或java.util.List<Long[]>.在任何一种情况下,它都会失败,并给出例外.

剩下的最后一件事.如果有一个单维数组(在JavaScript中),

var a=[1, 2];
Run Code Online (Sandbox Code Playgroud)

然后将其正确映射到Long[](以及Object[])作为SMD方法参数.

所以,现在我再也看不到去哪儿了.

Rom*_*n C 2

您错误地映射了参数，正确的映射是

@SMDMethod
public String insertZoneCharges(@SMDMethodParameter(name="list")Object[] list)
Run Code Online (Sandbox Code Playgroud)

归档时间：

查看次数：

1902 次

最近记录：

11 年，5 月 前
相关归档
jQuery:计算表中的行数 472
当用户手动滚动时,Jquery .animate()会停止滚动吗？ 42
如何扩展jquery ui小部件？(1.7) 30
为什么Ruby 1.9.2会因JSON gem依赖性而爆炸？ 21
如果浏览器不是Internet Explorer 9或更高版本,则显示消息 20
jQuery比其他JavaScript库有什么优势？ 19
jqXHR.getAllResponseHeaders()不会返回所有标头 19
AJAX/getJSON中的jQuery范围或竞争条件 9
Django REST 批量发布/发布 JSON 对象数组 9
如何从 OpenAPI/Swagger 模型定义生成 JSON 示例？ 9
难疑归档
如果__name__ =="__ main__":怎么办？ 5545
如何在JavaScript中验证电子邮件地址？ 4099
如何测试空的JavaScript对象？ 2730
如何检查字符串是否包含Bash中的子字符串 2332
在Mac上查找(并终止)进程锁定端口3000 1595
使用jQuery将表单数据转换为JavaScript对象 1580
如何在jQuery Ajax调用之后管理重定向请求 1319
wait()和sleep()之间的区别 1158
为什么人们在AWS出现时会使用Heroku？Heroku与AWS的区别是什么？ 1082
在JavaScript中将Unix时间戳转换为时间 1054