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欢迎,我正在使用 SPRING MVC、SPRING DATA、HIBERNATE、Maven
如标题所示。当我添加第一个产品时,一切正常,但当我想向客户添加下一个产品时,问题出现了。
我的实体
@Entity
@Table(name="customer")
public class Customer {
@Id
@GeneratedValue(strategy=GenerationType.IDENTITY)
@Column(name="customer_id")
private int id;
@Column(name="name")
private String name;
@Column(name="email")
private String email;
@Column(name="address")
private String address;
@OneToOne(cascade=CascadeType.ALL)
private CustomerDetails customerDetails;
@ManyToMany(mappedBy="customers",cascade=CascadeType.ALL, fetch=FetchType.EAGER)
private List<Products>products;
public Customer() {
}
public Customer(CustomerDetails customerDetails)
{
this.customerDetails=customerDetails;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
public CustomerDetails getCustomerDetails() {
return customerDetails;
}
public void setCustomerDetails(CustomerDetails customerDetails) {
this.customerDetails = customerDetails;
}
public void addCustomerDetails(CustomerDetails cd)
{
cd.setCustomer(this);
}
@Override
public String toString() {
return "Customer [id=" + id + ", name=" + name + ", email=" + email + ", address=" + address
+ ", customerDetails=" + customerDetails + "]";
}
//new added
public List<Products> getProducts() {
return products;
}
public void setProducts(List<Products> products) {
this.products = products;
}
public void addProduct(Products product)
{
if(products==null)
{
products=new ArrayList<>();
}
products.add(product);
product.addCustomer(this);
}
}
@Entity
@Table(name="Produkty")
public class Products {
@Id
@GeneratedValue(strategy=GenerationType.IDENTITY)
@Column
private int id;
@Column
private String name;
@Column
private String type;
@Column
private String expiryDate;
@ManyToMany(cascade= {CascadeType.DETACH,CascadeType.MERGE,CascadeType.PERSIST,CascadeType.REFRESH}, fetch=FetchType.EAGER)
private List<Customer> customers;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getType() {
return type;
}
public void setType(String type) {
this.type = type;
}
public String getExpiryDate() {
return expiryDate;
}
public void setExpiryDate(String expiryDate) {
this.expiryDate = expiryDate;
}
public List<Customer> getCustomers() {
return customers;
}
public void setCustomers(List<Customer> customers) {
this.customers = customers;
}
@Override
public String toString() {
return "Products [id=" + id + ", name=" + name + ", type=" + type + ", expiryDate=" + expiryDate
+ ", customers=" + customers + "]";
}
public void addCustomer(Customer customer)
{
if(customers==null)
{
customers=new ArrayList<>();
}
customers.add(customer);
}
}
我的 Controller :
@Controller
@RequestMapping("/customer")
public class CustomerController {
@Autowired
private CustomerService service;
@GetMapping("/home")
public String home(Model model)
{
List<Customer>customers=service.getCustomers();
model.addAttribute("message","Hello from Spring MVC");model.addAttribute("customers",customers);
return "home-page";
}
@GetMapping("/showForm")
public String showForm(Map<String,Object>model)
{
Customer customer=new Customer();
model.put("customer",customer);
return "new-customer";
}
@PostMapping("/add")
public String addCustomer(@ModelAttribute("customer") Customer customer)
{
CustomerDetails cd=new CustomerDetails();
customer.setCustomerDetails(cd);
cd.setCustomer(customer);
service.saveCustomer(customer);
return "redirect:/customer/home";
}
/*
@RequestMapping("/showCustomerDetailsForm")
public String showCustomerDetailsForm(@RequestParam int id ,Model model)
{
Customer customer=service.getCustomer(id);
model.addAttribute("customer",customer);
return "details-form";
}
@RequestMapping("/addDetails")
public String addCustomerDetails(@ModelAttribute("customerDetails") CustomerDetails customerDt)
{
serviceCD.saveCustomer(customerDt);
return "redirect:/customer/home";
}
*/
@GetMapping("/edit")
public String editCustomer(@RequestParam int id, Model model)
{
Customer customer=service.getCustomer(id);
model.addAttribute("customer",customer);
return "edit-customer";
}
@GetMapping("/delete")
public String deleteCustomer(@RequestParam int id)
{
service.deleteCustomer(id);
return "redirect:/customer/home";
}
@GetMapping("/search")
public String search(@RequestParam String keyword,Model model)
{
List<Customer>customers=service.search(keyword);
model.addAttribute("customers",customers);
return "search-page";
}
}
@Controller
@RequestMapping("/customer/product")
public class ProductController {
@Autowired
private CustomerService service;
@RequestMapping("/showForm")
public String showProductsForm(@RequestParam int id,Model model)
{
Customer customer=service.getCustomer(id);
Products product=new Products();
model.addAttribute("customer",customer);
model.addAttribute("product",product);
return "product-form";
}
@RequestMapping("/add")
public String addProductToCustomer(@RequestParam int id, @ModelAttribute("product")Products product)
{
Customer customer=service.getCustomer(id);
customer.addProduct(product);
service.saveCustomer(customer);
return "redirect:/customer/home";
}
}
我的产品表单 JSP 的主体:
<body>
<div align="center">
<table>
<form:form action="add?id=${customer.id}" modelAttribute="product">
<tr>
<td>${customer.id}</td>
</tr>
<tr>
<td>Name:</td>
<td><form:input path="name"/>
</td>
</tr>
<tr>
<td>Type:</td>
<td><form:input path="type"/>
</td>
</tr>
<tr>
<td>Expiry date:</td>
<td><form:input path="expiryDate"/>
</td>
</tr>
<tr>
<td><input type="submit" value="Submit" /></td>
</tr>
</form:form>
</table>
</div>
</body>
我的 home-page.jsp 的正文
<div align="center">
<h1>Customer Manager</h1>
<form method="get" action="search">
<input type="text" name="keyword" />
<input type="submit" value="Search" />
</form>
<h3> <a href="showForm">new customer</a></h3>
<table border="1" padding="5">
<tr>
<th>ID</th>
<th>Name</th>
<th>E-mail</th>
<th>Address</th>
<th>Action</th>
</tr>
<c:forEach items="${customers}" var="customer">
<tr>
<td>${customer.id}</td>
<td>${customer.name}</td>
<td>${customer.email}</td>
<td>${customer.address}</td>
<td><a href ="edit?id=${customer.id}">Edit</a> <a href ="delete?id=${customer.id}">Delete</a></td>
<td> <a href="product/showForm?id=${customer.id}" >Add product</a>
</tr>
</c:forEach>
</table>
堆栈跟踪:
gru 16, 2019 10:22:47 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [dispatcher] in context with path [/spring_hib_config_web] threw exception [Handler dispatch failed; nested exception is java.lang.StackOverflowError] with root cause
java.lang.StackOverflowError
at java.lang.AbstractStringBuilder.append(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at java.lang.StringBuilder.<init>(Unknown Source)
at com.firstapp.entity.CustomerDetails.toString(CustomerDetails.java:78)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.Customer.toString(Customer.java:104)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.CustomerDetails.toString(CustomerDetails.java:78)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.Customer.toString(Customer.java:104)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.CustomerDetails.toString(CustomerDetails.java:78)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.Customer.toString(Customer.java:104)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.CustomerDetails.toString(CustomerDetails.java:78)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.Customer.toString(Customer.java:104)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.CustomerDetails.toString(CustomerDetails.java:78)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.Customer.toString(Customer.java:104)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.CustomerDetails.toString(CustomerDetails.java:78)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.Customer.toString(Customer.java:104)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.CustomerDetails.toString(CustomerDetails.java:78)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.Customer.toString(Customer.java:104)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.CustomerDetails.toString(CustomerDetails.java:78)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.Customer.toString(Customer.java:104)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.CustomerDetails.toString(CustomerDetails.java:78)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.Customer.toString(Customer.java:104)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.CustomerDetails.toString(CustomerDetails.java:78)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.Customer.toString(Customer.java:104)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.CustomerDetails.toString(CustomerDetails.java:78)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.Customer.toString(Customer.java:104)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.CustomerDetails.toString(CustomerDetails.java:78)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.Customer.toString(Customer.java:104)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.CustomerDetails.toString(CustomerDetails.java:78)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.Customer.toString(Customer.java:104)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.CustomerDetails.toString(CustomerDetails.java:78)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.Customer.toString(Customer.java:104)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.CustomerDetails.toString(CustomerDetails.java:78)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.Customer.toString(Customer.java:104)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.CustomerDetails.toString(CustomerDetails.java:78)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.Customer.toString(Customer.java:104)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.CustomerDetails.toString(CustomerDetails.java:78)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.Customer.toString(Customer.java:104)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.CustomerDetails.toString(CustomerDetails.java:78)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.Customer.toString(Customer.java:104)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.CustomerDetails.toString(CustomerDetails.java:78)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.Customer.toString(Customer.java:104)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.CustomerDetails.toString(CustomerDetails.java:78)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.Customer.toString(Customer.java:104)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.CustomerDetails.toString(CustomerDetails.java:78)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.Customer.toString(Customer.java:104)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.CustomerDetails.toString(CustomerDetails.java:78)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.Customer.toString(Customer.java:104)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.CustomerDetails.toString(CustomerDetails.java:78)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.Customer.toString(Customer.java:104)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.CustomerDetails.toString(CustomerDetails.java:78)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.Customer.toString(Customer.java:104)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.CustomerDetails.toString(CustomerDetails.java:78)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.Customer.toString(Customer.java:104)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.CustomerDetails.toString(CustomerDetails.java:78)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.Customer.toString(Customer.java:104)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.CustomerDetails.toString(CustomerDetails.java:78)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.Customer.toString(Customer.java:104)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.CustomerDetails.toString(CustomerDetails.java:78)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.Customer.toString(Customer.java:104)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.CustomerDetails.toString(CustomerDetails.java:78)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.Customer.toString(Customer.java:104)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.CustomerDetails.toString(CustomerDetails.java:78)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.Customer.toString(Customer.java:104)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.CustomerDetails.toString(CustomerDetails.java:78)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.Customer.toString(Customer.java:104)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.CustomerDetails.toString(CustomerDetails.java:78)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.Customer.toString(Customer.java:104)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.CustomerDetails.toString(CustomerDetails.java:78)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.Customer.toString(Customer.java:104)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.CustomerDetails.toString(CustomerDetails.java:78)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.Customer.toString(Customer.java:104)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.CustomerDetails.toString(CustomerDetails.java:78)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.Customer.toString(Customer.java:104)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.CustomerDetails.toString(CustomerDetails.java:78)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.Customer.toString(Customer.java:104)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.CustomerDetails.toString(CustomerDetails.java:78)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.Customer.toString(Customer.java:104)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.CustomerDetails.toString(CustomerDetails.java:78)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.Customer.toString(Customer.java:104)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.CustomerDetails.toString(CustomerDetails.java:78)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.Customer.toString(Customer.java:104)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.CustomerDetails.toString(CustomerDetails.java:78)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.Customer.toString(Customer.java:104)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.CustomerDetails.toString(CustomerDetails.java:78)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.Customer.toString(Customer.java:104)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.CustomerDetails.toString(CustomerDetails.java:78)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.Customer.toString(Customer.java:104)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.CustomerDetails.toString(CustomerDetails.java:78)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.Customer.toString(Customer.java:104)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.CustomerDetails.toString(CustomerDetails.java:78)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.Customer.toString(Customer.java:104)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.firstapp.entity.CustomerDetails.toString(CustomerDetails.java:78)
有人有什么想法吗?我会很感激。谢谢
最佳答案
正如您在 StackTrace 中看到的,to Customer 和 CustomerDetails toString 方法导致了 StackoverflowError。
您必须注意双向引用,并确保在一侧调用 toString 不会导致循环调用。
关于当我尝试向客户添加另一个产品时发生 java.lang.StackOverflowError,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/59353953/
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我想选择表格的一行并插入到另一个现有表格中。(我用的是php和MySql,两张表除了id和timestamp外,其他列都是一样的) 我试着做一个手推车。我希望当有人付款时,从“carret”中选择该客
我想使用 JXTA 实现客户端-服务器架构。服务器部分的配置也将是 3 层。有谁知道开始这个项目的好地方吗? 提前致谢。 最佳答案 JXTA 处理 p2p 连接。这与客户端-服务器方法相反。 据我了解
我需要创建一个 Stripe 客户并为他们订阅一个计划。我查看了 Stripe.js,似乎虽然您可以获得 token ,但除此之外它没有提供任何东西。有可用于节点和 PHP 的库,但为什么不能用于 J
我有一个数据库设计要求,它变得越来越复杂,我需要找出最佳的处理方法。 目前,我有“联系人”,也有“公司”。一个公司可以有多个联系人,但一个联系人只能属于一个公司。这形成了明显的 1:n 关系。但是,联
http://ecc.galengrover.com/programs/facility-rentals/ 在那个页面上,只有那个页面我有一个奇怪的问题。在内容框上方,“所有区域”一词出现在其他文本的
所以,我让这个 CSS 预加载器正常工作。但是,我在将其添加到我的网站时遇到了一些困难。有人可以帮助我理解代码的实现,以允许预加载器成为网站加载前查看的第一个元素。此时预加载器将淡出。预加载器的代码如
考虑以下场景: 有一个 Windows 服务托管一个 WCF 服务。 WCF 服务在客户端和位于不同物理机器上的 AppFabric 服务器之间提供接口(interface)。它检索对象,对其进行计算
当前端的订单历史页面 (*/sales/order/history/) 只显示一条短消息时,这个问题首先被意识到:您没有下订单。 经过一番调试,发现问题出在这个函数上: Mage::getSingle
我的公司是一些项目的定制开发商店,有些较大,有些较小。目前,我们通过电子邮件处理所有客户通信。所以我们通过电子邮件发送设计文档,他们将其标记并发送回去。然后我们推出了他们产品的测试版,他们通过电子邮件
我有一个小部件 View 如下: 公共(public)类 RemoteNumView 扩展了 FrameLayout { 我如何调用 Roboguice 就像在 RoboActivity 中一样?如下
我有一个包含客户编号、客户名称和商品编号的 MySQL 表。它比这稍微复杂一点,但我尝试稍微简化它并删除敏感数据。 当前表 Unique Customer Number | Customer Name
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