如何在 SPRING MVC POJO 的字段中保存日文字符 [英] How to hold japanese characters in SPRING MVC POJO's field
问题描述
我正在使用构建 Web 应用程序
I am building web application using
- Spring MVC
- Spring 安全性
- 休眠
- MySQl
我想为我的应用程序添加国际化支持.例如我想使用 Hibernate 将日文字符存储和检索到 mySQL db.
I want to add internationalization support to my application.e.g. I want to store and retrive japanese characters to mySQL db using Hibernate.
我已将 DB charset 设置为 UTF-8 并将属性添加到 hibernate-cfg.xml
I have set DB charset to UTF-8 and also added property to hibernate-cfg.xml
属性名称="hibernate.connection.characterEncoding">UTF-8
我已经完成了简单的 POC，其中从 java 文件中，我可以用日文字符声明一些字符串变量，并且它们已成功插入 DB 并且通过日文字符搜索也可以正常工作.
I have done simple POC in which from java file , I am able to declare some string variable with japanese characters and they are successfully inserted into DB and search by japanese characters is also working fine.
但是当我在 JSP 文件上填写表单时，所有字段值都以 POJO 的形式传递给控制器，并且 POJO 字段中的所有日语字符都自动转换为数字字符引用，如下例所述，
But when on JSP file , i fill up form, all field value are passed to controller in form of POJO, and all japansese characters in POJO's field are sutomatically converted into numerical character references as mentioned in below example,
CreateUser.jsp
<form:form method="post" commandName="userModel">
<%@include file="/tp/web/iBusinessException.jsp"%>
<table width="700" border="0" align="center" cellpadding="4"
cellspacing="0">
<tr>
<td class="tdWscHeading">
<img
src="<%=request.getContextPath()%>/tp/web/console/include/images/iconCreateuser.gif"
alt="Task Summary" width="20" height="20" align="absmiddle">
<spring:message code='label.createuser'></spring:message>
</td>
</tr>
</table>
<table width="700" border="0" align="center" cellpadding="4"
cellspacing="1" class="tableWscmain">
<tr>
<td width="250" class="tdWscContent fontBold">
<spring:message code='label.firstname'></spring:message>
<span class="fontRed"> *</span>
</td>
<td class="tdWscContent">
<form:input path="firstname" cssClass="formINPUT"
autocomplete="off" />
<!-- Error Message if Key is Empty Starts -->
<span class="error"> <spring:bind path="firstname">
<c:if test="${not empty status.errorMessage}">
<c:out value="${status.errorMessage}" escapeXml="false" />
</c:if>
</spring:bind> </span>
<!-- Error Message if key is Empty Ends -->
</td>
</tr>
<tr>
<td class="tdWscContent fontBold">
<spring:message code='label.lastname'></spring:message>
<span class="fontRed"> *</span>
</td>
<td class="tdWscContent">
<form:input path="lastname" cssClass="formINPUT"
autocomplete="off" />
<!-- Error Message if Key is Empty Starts -->
<span class="error"> <spring:bind path="lastname">
<c:if test="${not empty status.errorMessage}">
<c:out value="${status.errorMessage}" escapeXml="false" />
</c:if>
</spring:bind> </span>
<!-- Error Message if key is Empty Ends -->
</td>
</tr>
<tr>
<td class="tdWscContent fontBold">
<spring:message code='label.username'></spring:message>
<span class="fontRed"> *</span>
</td>
<td class="tdWscContent">
<form:input path="username" cssClass="formINPUT"
autocomplete="off" />
<!-- Error Message if Key is Empty Starts -->
<span class="error"> <spring:bind path="username">
<c:if test="${not empty status.errorMessage}">
<c:out value="${status.errorMessage}" escapeXml="false" />
</c:if>
</spring:bind> </span>
<!-- Error Message if key is Empty Ends -->
</td>
</tr>
<tr>
<td class="tdWscContent fontBold">
<spring:message code='label.password'></spring:message>
<span class="fontRed"> *</span>
</td>
<td class="tdWscContent">
<form:password path="password" cssClass="formINPUT"
autocomplete="off" showPassword="false" />
<!-- Error Message if Key is Empty Starts -->
<span class="error"> <spring:bind path="password">
<c:if test="${not empty status.errorMessage}">
<c:out value="${status.errorMessage}" escapeXml="false" />
</c:if>
</spring:bind> </span>
<!-- Error Message if key is Empty Ends -->
</td>
</tr>
<tr>
<td class="tdWscContent fontBold">
<spring:message code='label.email'></spring:message>
<span class="fontRed"> *</span>
</td>
<td class="tdWscContent">
<form:input path="email" cssClass="formINPUT"
autocomplete="off" />
<!-- Error Message if Key is Empty Starts -->
<span class="error"> <spring:bind path="email">
<c:if test="${not empty status.errorMessage}">
<c:out value="${status.errorMessage}" escapeXml="false" />
</c:if>
</spring:bind> </span>
<!-- Error Message if key is Empty Ends -->
</td>
</tr>
<tr>
<td class="tdWscContent fontBold">
<spring:message code='label.groupname'></spring:message>
<span class="fontRed"> *</span>
</td>
<td class="tdWscContent">
<select id="groupname" name="groupname">
<c:forEach items="${GROUPS_LIST_RESULT}" var="option">
<option value='<c:out value="${option.groupname}" />'>
<c:out value="${option.groupname}" />
</option>
</c:forEach>
</select>
<!-- Error Message if Key is Empty Starts -->
<span class="error"> <form:errors path="groupname"></form:errors>
</span>
<!-- Error Message if key is Empty Ends -->
</td>
</tr>
<tr align="center">
<td colspan="2" class="tdWscContent fontBold">
<input type="submit" name=""
value="<spring:message code="label.createuser"></spring:message>">
</td>
</tr>
</table>
</form:form>
我的控制器
@RequestMapping(value = USERADMINISTRATION_NAMESPACE + "/createUser.do", method = RequestMethod.POST)
public ModelAndView submitCreateUserPage(
@ModelAttribute("userModel") User user, BindingResult result
) throws UserAlreadyExistsException {
String password = "";
password = user.getPassword();
/* Here , password i am getting like **¤** , */
/* I want exactly same Japanese characters as entered by user */
}
我的应用程序中没有使用任何字符编码过滤器.
I have not use any character encoding filter in my application.
从 jsp 到 controller ，会自动转换成上面这样的数字..我想要用户在 jsp 中输入的完全相同的日文字符，并希望将相同的日文字符插入数据库并显示在页面上.
From jsp to controller , it is automatically converted into such above number.. I want exactly same Japanese characters as entered by user in jsp and want to insert same into DB and display on page.
我将所有用户输入字段的值作为 POJO 从 JSP 传递到控制器.
I am passing all user input field's value from JSP to controller as a POJO.
请帮忙...
推荐答案
我终于成功地在基于 Spring MVC 的应用程序中实现了国际化支持......
Finally I succeed in implementing internationalization support in my Spring MVC based application....
我按照以下步骤使用 Spring MVC、Hibernate、MYSQL 或 Oracle 数据库以及 Jboss 或 webLogic 作为应用程序服务器将国际化支持整合到我的 Web 应用程序中.
I have followed below steps to incorporate internationalization support to my web application using Spring MVC, Hibernate , MYSQL or Oracle Database and Jboss or webLogic as a application server.
假设我们要添加对日语的国际化支持.即用户应该能够在 Web 表单中输入日语字符，并且应该以与用户输入的格式相同的格式保存，并且应该在网页上以相同的语言显示.
Let's say we want to add internationalization support for Japanese language.i.e user should be able to enter Japanese characters in web forms and it should be saved in same format as entered by user and also should be displayed in same language on web page.
按照以下步骤操作.
确保您在操作系统中安装了日语支持(特定于地区的安装).如果没有，请安装它.
Make sure you have Japanese language support (Region specific installation) installed into operating system. If not, please install it.
如果您使用任何 IDE，请通过将 文本编码更改为 UTF-8 来配置 IDE 以支持日语.例如，如果您使用的是我的 Eclipse，则将文本文件编码更改为 UTF-8.您可以通过此路径进行更改(Window->Preference->General->Workspace)
If you are using any IDE then configure IDE to support Japanese language by changing text encoding to UTF-8. For example,If you are using my Eclipse then change text file encoding to UTF-8. You can change by this path (Window->Preference->General->Workspace)
将 Spring 框架内置的字符编码过滤器作为过滤器链 (web.xml) 中的第一个过滤器，以确保它在请求处理期间首先运行并在响应处理期间最后运行
Place Spring framework’s in built character encoding filter as a first filter in filter chain (web.xml) to make sure it runs first during request processing and runs last during response processing
web.xml
<filter>
<filter-name>encodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
<init-param>
<!-- set forceEncoding to true if you want to override encoding of servlet -->
<param-name>forceEncoding</param-name>
<param-value>true</param-value>
</init-param>
<filter-mapping>
<filter-name>encodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
4 通过在 JSP 顶部添加以下代码，将 JSP 页面编码设置为 UTF-8.
4 Set JSP Page encoding to UTF-8 by adding below mentioned code at top of JSP.
<代码><%@ page language="java" pageEncoding="UTF-8" contentType="text/html;charset=UTF-8"%>
<%@ page language="java" pageEncoding="UTF-8" contentType="text/html;charset=UTF-8"%>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
5 通过将以下属性添加到 hibernate-cfg.xml 将 Hibernate 连接编码方案设置为 UTF-8
5 Set Hibernate connection encoding scheme to UTF-8 by adding following property to hibernate-cfg.xml
<property name="hibernate.connection.characterEncoding">UTF-8</property>
注意:如果使用 JBoss 应用服务器，请确保您已将 characterEncoding=UTF-8 附加到数据库服务配置文件中的 connection-url(例如 mysql-ds.xml 用于 mySQL 数据库)如下所述.
Note : If using JBoss application server, please make sure you have appended characterEncoding=UTF-8 to connection-url in database service configuration file (For ex. mysql-ds.xml for mySQL database) as mentioned below.
<datasources>
<local-tx-datasource>
<jndi-name>WSCDS</jndi-name>
<connection-url>
jdbc:mysql://{ipaddress}:{port}/{database_name}?characterEncoding=UTF-8
</connection-url>
<driver-class>com.mysql.jdbc.Driver</driver-class>
<user-name>{username}</user-name>
<password>{password}</password>
<metadata>
<type-mapping>mySQL</type-mapping>
</metadata>
这篇关于如何在 SPRING MVC POJO 的字段中保存日文字符的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
