The file cannot be validated as the XML definition 异常解决办法

来源：互联网发布：centos wget 命令编辑：程序博客网时间：2024/05/22 00:41

在struts2中配置验证框架时，回报上面的错误。这时候，要学会读懂英文意思。文件不能被验证的XML定义。下面看完整的错误提示。

The file cannot be validated as the XML definition "http://www.opensymphony.com/xwork/xwork-validator-1.0.2.dtd" that is specified as describing the syntax  of the file cannot be located.

马上到xwork核心文件中找xwork-validator-1.0.2.dtd的文件的约定规则和自己写的意义对应。

<validators>    <field name="user.name">        <field-validator type="requiredstring">            <param name="trim">true</param>            <message>用户名不能为空</message>              </field-validator>        <field-validator type="stringlength">            <param name="maxLength">10</param>            <param name="minLength">6</param>            <message>用户名长度必须在${minLength}和${maxLength}之间</message>               </field-validator>      </field> </validators> <validators>    <field name="user.pwd">        <field-validator type="requiredstring">            <param name="trim">true</param>            <message>密码不能为空</message>               </field-validator>        <field-validator type="stringlength">            <param name="minLength">6</param>            <message>长度必须大于${minLength}</message>              </field-validator>      </field>    <field name="repwd">        <field-validator type="requiredstring">            <param name="trim">true</param>            <message>确认密码不能为空</message>             </field-validator>        <field-validator type="fieldexpression">            <param name="expression">user.pwd==repwd</param>            <message>密码和确认密码必须相等</message>              </field-validator>      </field> </validators>

对比发现是根节点，我多写了。只保留一个就好了。
完整jsp页面代码：

<s:fielderror/> <s:form action="reg" method="post">    <s:textfield name="user.name" label="用户名" />    <s:password name="user.pwd" label="密码" />    <s:password name="repwd" label="确认密码" />    <s:textfield name="user.telephone" label="电话" />    <s:textfield name="user.username" label="用户姓名" />    <s:submit value="立即注册" /> </s:form>

配置文件，配置文件要用请求文件放在一起。命名要注意，如果action命名：RegisterAction，配置文件为：RegisterAction-validation.xml

<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE validators PUBLIC "-//OpenSymphony Group//XWork Validator 1.0.2//EN"  "http://www.opensymphony.com/xwork/xwork-validator-1.0.2.dtd" > <validators>    <field name="user.name">        <field-validator type="requiredstring">            <param name="trim">true</param>            <message>用户名不能为空</message>              </field-validator>        <field-validator type="stringlength">            <param name="maxLength">10</param>            <param name="minLength">6</param>            <message>用户名长度必须在${minLength}和${maxLength}之间</message>               </field-validator>      </field>    <field name="user.pwd">        <field-validator type="requiredstring">            <param name="trim">true</param>            <message>密码不能为空</message>               </field-validator>        <field-validator type="stringlength">            <param name="minLength">6</param>            <message>长度必须大于${minLength}</message>              </field-validator>      </field>    <field name="repwd">        <field-validator type="requiredstring">            <param name="trim">true</param>            <message>确认密码不能为空</message>             </field-validator>        <field-validator type="fieldexpression">            <param name="expression">user.pwd==repwd</param>            <message>密码和确认密码必须相等</message>              </field-validator>      </field>    <field name="user.telephone">        <field-validator type="requiredstring">            <param name="trim">true</param>            <message>电话号码不能为空</message>             </field-validator>        <field-validator type="regex">            <param name=" regex ">^(\d{3,4}-){0,1}(\d{7,8}))$</param>                      <message>电话格式不正确</message>              </field-validator>      </field>    <field name="user.username">        <field-validator type="requiredstring">            <param name="trim">true</param>            <message>用户姓名不能为空</message>             </field-validator>        <field-validator type="stringlength">            <param name="maxLength">10</param>            <param name="minLength">2</param>            <message>用户名长度必须在${minLength}和${maxLength}之间</message>               </field-validator>      </field> </validators>

acrion

package actions;                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            import com.opensymphony.xwork2.ActionSupport;import entity.User;public class RegisterAction extends ActionSupport {        private User user;        private String repwd;    public User getUser() {            return user;        }        public void setUser(User user) {            this.user = user;        }        public String getRepwd() {            return repwd;        }        public void setRepwd(String repwd) {            this.repwd = repwd;        }    public String execute(){        return SUCCESS;    }   }

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