小编Kie*_*goc的帖子

我正在尝试将json(字符串格式)映射到对象,我收到以下错误

com.fasterxml.jackson.databind.JsonMappingException:名称为'defaultReference'的多个反向引用属性

这是json字符串

{"pledge":"74","client":"66","date":"","originId":"1","qualityId":"2","grade":"19","packing":"4","tons":"1000","fromDate":"","toDate":"","type":0,"remark":"","status":0,"area":"1531","id":-1,"refNumber":"","log":"","user":""}

这是对象

@Entity
@Table(name="movement", catalog = "wsmill3")
public class MovementView implements java.io.Serializable {
    private Integer id;
    private Integer originId;
    private Integer qualityId;
    private String refNumber;
    private Integer client;
    private String clientRef;
    private Integer grade;
    private Integer packing;
    private Integer pledge;
    private Integer area;
    private Date date;
    private Double tons;
    private Date fromDate;
    private Date toDate;
    private String remark;
    private User user;
    private Byte status;
    private String log;
    private Byte type;
    //constructor, getter and setter

这是做映射的代码

String data …

我正在尝试使用CefSharp将我的网络应用加载到winfoms中.我添加了2个dll文件:CefSharp.dll和CefSharp.WinForms到引用中,并通过添加现有项目将2个dll文件icudt.dll和libcef.dll添加到我的项目中.

这是表单中的代码

public WebView web_view;

public Form1()
{
     InitializeComponent();
     web_view = new WebView("http://localhost:8084/wsmill",new CefSharp.BrowserSettings());
     web_view.Dock = DockStyle.Fill;
     toolStripContainer1.ContentPanel.Controls.Add(web_view);
     CefSharp.CEF.Initialize(new Settings());
}

运行应用程序时,我收到此错误

WindowsFormsApplication1.exe中发生未处理的"System.IO.FileLoadException"类型的异常附加信息:无法加载文件或程序集"CefSharp.dll"或其依赖项之一.动态链接库(DLL)初始化例程失败.(HRESULT异常:0x8007045A)

所以任何了解这一点的人都请帮助我,谢谢

我正在尝试使用标签 <mvc:resources>

这是我的项目结构

我想要的是访问js文件夹中的javascript和样式文件夹中的css
但是,每当我将它添加到我的dispatcher-servlet.xml

<mvc:resources mapping="/resources/**" location="/"/>

我在运行项目时遇到错误404(项目将重定向到login.htm,这是login.jsp页面)

这是我的dispatcher-servlet.xml代码

<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:p="http://www.springframework.org/schema/p"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
       http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.1.xsd
       http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd
        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd">

    <context:component-scan base-package="com.swcommodities.wsmill.controller"/>

    <mvc:resources mapping="/resources/**" location="/"/>

    <bean id="viewResolver"
          class="org.springframework.web.servlet.view.InternalResourceViewResolver"
          p:prefix="/WEB-INF/"
          p:suffix=".jsp" />
    <tx:annotation-driven/>
    .
    .
    .
</beans>

这是web.xml

<context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/applicationContext.xml</param-value>
    </context-param>
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
    <servlet>
        <servlet-name>dispatcher</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <load-on-startup>2</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>dispatcher</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>
    <session-config>
        <session-timeout>
            30
        </session-timeout>
    </session-config>
    <welcome-file-list>
        <welcome-file>redirect.jsp</welcome-file>
    </welcome-file-list>

我不知道为什么我删除<mvc:resources...项目正确运行的行,但是当将这个添加到项目时,我立即得到404错误.我认为这个与当前的项目有一些冲突.

尝试使用本机SQL更新数据时出现此错误.这是我的脚本:

update weight_note_receipt set pledge_id =:pledge  where wn_id in (:wns)

wns是包含多于1的字符串,wn_id如下所示:

222,226,228,251,256,262,263,264,265,266,267,272,281,286,294,296,299,301,302,303,306,307,330,332,333,337,338,339,341,368,371,376,377,378,379,380,381,385,391,397,423,424,443,452,454,461,462,463,464,490,503,504,521,525,528,529,530,532,533,549,554,560,561,564,565,566,567,569,570,595,598,600,603,605,606,607,644,646,649,653,661,662,663,667,669,678,683,752,1039,1075,258,259,260,261,268,269,270,287,304,305,308,325,334,604,643,647,648,659,660,664,665,666,704,709,753,754,757,758,809,834,846,861,872,879,882,911,913,916,919,920,164

当我更新(使用query.executeUpdate())时,它会抛出以下错误:

请求处理失败; 嵌套异常是org.hibernate.exception.DataException:无法执行本机批量操作查询]与根本原因com.mysql.jdbc.MysqlDataTruncation:数据截断:截断不正确的DOUBLE值:'222,226,228,251,256,262,263,264,265,266,267,272,281,286,294,296,299,301,302,303,306,307,330,332,333,337,338,339,341,368,371,376,'

是因为输入字符串太长了吗？

我正在阅读算法以删除单个链接列表的最后一个元素.假设我有一个名为ListNode的链接列表对象:

public class ListNode {
    private int data;
    private ListNode next;

    public ListNode(int data) {
        this.data = data;
    }

    public int getData() {
        return this.data;
    }

    public void setData(int data) {
        this.data = data;
    }

    public ListNode getNext() {
        return this.next;
    }

    public void setNext(ListNode next) {
        this.next = next;
    }
}

我发现删除列表最后一个节点的方法是:

public ListNode deleteAtTail(ListNode head) {

    if (head == null || head.next == null) return null;
    ListNode node = head;
    while(node.next.next != null) {
        node = node.next;
    } …