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dtd为什么不进行有效性验证 <!-- nmm.dtd--> <!ELEMENT project (id_generator,tables,initdatas?)> <!ATTLIST project   name CDATA #REQUIRED   descript CDATA #REQUIRED   column_prefix CDATA #IMPLIED   table_prefix CDATA #IMPLIED>    <!ELEMENT id_generator (#PCDATA)> <!ATTLIST id_generator   table_name CDATA #REQUIRED   column_id_table CDATA #REQUIRED   column_current_id CDATA #REQUIRED>    <!ELEMENT tables (table+)> <!ELEMENT table (columnlist,fk*)> <!ATTLIST table   name CDATA #REQUIRED   caption CDATA #IMPLIED>    <!ELEMENT column_list (column+)> <!ELEMENT column (#PCDATA)> <!ATTLIST column   name CDATA #REQUIRED   data_type (varchar|char|integer|bool|numeric|datetime|date) "varchar"     data_type CDATA #REQUIRED   length CDATA #IMPLIED   precisioin CDATA #IMPLIED   caption CDATA #IMPLIED   default_value CDATA #IMPLIED   default_value (true|false) "false"   create_index  CDATA #IMPLIED   create_index  (true|false) "false"   allow_null CDATA #IMPLIED   pk CDATA #IMPLIED   pk (true|false) "false">   <!ELEMENT fk (#PCDATA)>   <!ATTLIST fk   column CDATA #REQUIRED   reference_column CDATA #REQUIRED   parent_table CDATA #IMPLIED>    <!ELEMENT initdatas (exec_sql*)> <!ELEMENT exec_sql (#PCDATA)> <!ATTLIST exec_sql   sql CDATA #REQUIRED>       <?xml version="1.0" encoding="gb2312" standalone="no"?> <!DOCTYPE project SYSTEM "nmm.dtd">    <!-- =================================================================== -->    <!-- Generate ddl                                                        -->    <!--change history      2005-3-22 0:03 初稿      2005-3-22 0:14 添加权限模块基础数据    -->    <!-- =================================================================== -->     <!--  name is the database name ,if it exist then it will be clear.    column_prefix,table_prefix will auto added to all the table and column,prevent ur definition has reserved word --> <project name="exam" descript="考试系统" column_prefix="" table_prefix="cm_">  <!--   id_generator is the table that generate unique integer id,it use column_current_id save the maxid and column_id_table as diffrent   table kind  -->  <id_generator table_name="sys_nextid" column_id_table="table_name" column_current_id="current_id"/>  <!--tables retrive all the table will be in database-->  <tables>    <table name="sys_right" caption="系统权限列表">       <column_list>           <column name="id" pk="true" data_type="integer" caption="权限模块编号"/>           <column name="parent_id" data_type="integer" caption="所属权限模块编号"/>           <column name="name" data_type="varchar" length="30" caption="权限模块名称"/>           <column name="is_leaf" data_type="bool" caption="是否最终权限"/>       </column_list>       <fk column="parent_id" reference_column="id"/>   </table>      <table name="sys_group" caption="系统权限组">       <column_list>           <column name="id" pk="true" data_type="integer" caption="权限组编号"/>           <column name="name" create_index="true" data_type="varchar" length="30" caption="权限组名称"/>       </column_list>       <fk column="group_id" parent_table="sys_group" reference_column="id"/>   </table>      <table name="sys_group_right" caption="权限组权限">       <column_list>           <column name="group_id" data_type="integer" caption="权限模组编号"/>           <column name="right_id" data_type="integer" caption="权限模块编号"/>       </column_list>       <fk column="group_id" parent_table="sys_group" reference_column="id"/>       <fk column="right_id" parent_table="sys_right" reference_column="id"/>   </table>      <table name="sys_user" caption="用户列表">       <column_list>           <column name="id" pk="true" data_type="integer" caption="用户编号"/>           <column name="name" create_index="true" data_type="varchar" length="30" caption="用户姓名"/>           <column name="userid" create_index="true" data_type="varchar" length="30" caption="用户登录id"/>           <column name="password" data_type="varchar" length="30" caption="用户登录密码"/>           <column name="expiredate" data_type="date" caption="用户过期时间"/>           <column name="group_id" data_type="integer" caption="用户所属权限组"/>       </column_list>       <fk column="group_id" parent_table="sys_group" reference_column="id"/>   </table>      <table name="sys_config" caption="系统参数">       <column_list>           <column name="id" pk="true" data_type="integer" caption="流水号"/>           <column name="param_name" data_type="varchar" length="30" caption="参数名称"/>           <column name="param_value" data_type="varchar" length="30" caption="参数值"/>       </column_list>   </table>      <table name="sys_unit" caption="单位列表">       <column_list>           <column name="id"   pk="true" data_type="integer" caption="单位编号"/>           <column name="parent_id" data_type="integer" caption="上级单位编号"/>           <column name="name" create_index="true" data_type="varchar" length="100" caption="单位名称"/>           <column name="addr" data_type="varchar" length="100" caption="单位地址"/>           <column name="contact" data_type="varchar" length="100" caption="联系方式"/>           <column name="linkman" data_type="varchar" length="30" caption="联系人"/>       </column_list>       <fk column="parent_id" reference_column="id"/>   </table>   <table name="sys_code" caption="系统代码">    <column_list>     <column name="id" pk="true" data_type="integer" caption="流水号"/>     <column name="kind" data_type="varchar" length="30" caption="代码类别"/>     <column name="option" data_type="varchar" length="30" caption="可选项"/>    </column_list>   </table>         <table name="quiz" caption="试题">       <column_list>           <column name="id" pk="true" create_index="true" data_type="integer" caption="试题编号"/>           <column name="knowledge" data_type="varchar" length="30" caption="所属知识点" />           <column name="difficult" data_type="integer" caption="试题难度" />           <column name="type" data_type="varchar" length="30" caption="试题类型"/>           <!--如果是填空题，可以插入%blank.20%宏来表示需要填入的位置，系统会根据宏动态生成空缺供考生填写-->           <column name="question" data_type="varchar" length="300" caption="题干"/>           <column name="answer" data_type="varchar" length="300" caption="答案"/>           <column name="reference_score" data_type="integer" caption="参考分值"/>           <!--如果不是有效,则在生成试卷时将不会包含该题-->           <column name="is_available" data_type="bool" caption="试题是否有效"/>       </column_list>   </table>      <table name="tester" caption="考生">       <column_list>           <column name="id" pk="true" data_type="integer" caption="考生编号"/>           <column name="name" data_type="varchar" length="30" caption="姓名"/>           <column name="login_id" data_type="varchar" length="30" caption="登录账号"/>           <column name="password" data_type="varchar" length="30" caption="登录密码"/>           <column name="unit_id" data_type="integer" caption="所属单位"/>           <column name="birth" data_type="varchar" length="30" caption="出生年月"/>           <column name="sex" data_type="varchar" length="30" caption="性别"/>       </column_list>       <fk column="unit_id" parent_table="sys_unit" reference_column="id"/>   </table>      <table name="paper_generate_rule" caption="试卷生成规则">       <column_list>           <column name="id" pk="true" data_type="integer" caption="流水号"/>           <column name="name" data_type="varchar" length="30" caption="规则名称"/>           <column name="sum_max_difficult" data_type="integer" caption="总体最高难度"/>           <column name="sum_min_difficult" data_type="integer" caption="总体最低难度"/>           <column name="min_difficult" data_type="integer" caption="单题最低难度"/>           <column name="max_difficult" data_type="integer" caption="单题最高难度"/>           <column name="max_single_selector" data_type="integer" caption="单选题最大数目"/>           <column name="min_single_selector" data_type="integer" caption="单选题最小数目"/>           <column name="max_multi_selector" data_type="integer" caption="多选题最大数目"/>           <column name="min_multi_selector" data_type="integer" caption="多选题最小数目"/>           <column name="max_judgment" data_type="integer" caption="判断题最大数目"/>           <column name="min_judgment" data_type="integer" caption="判断题最小数目"/>           <column name="max_blank" data_type="integer" caption="填空题最大数目"/>           <column name="min_blank" data_type="integer" caption="填空题最小数目"/>           <column name="max_subjection" data_type="integer" caption="主观题最大数目"/>           <column name="min_subjection" data_type="integer" caption="主观题最小数目"/>       </column_list>       <fk column="unit_id" parent_table="sys_unit" reference_column="id"/>   </table>      <table name="test_paper" caption="试卷">       <column_list>           <column name="id" pk="true" data_type="integer" caption="试卷流水号"/>           <column name="name" data_type="varchar" length="50" caption="试卷名称"/>           <column name="generate_time" data_type="datetime" caption="生成时间"/>           <column name="generate_man" data_type="varchar" caption="生成人"/>           <column name="available_time" data_type="datetime" caption="生效时间"/>           <column name="full_mark" data_type="integer" caption="满分分数"/>           <column name="pass_score" data_type="integer" caption="及格分数"/>           <column name="time_limit" data_type="integer" caption="试卷答题时限(分钟)"/>       </column_list>   </table>      <table name="paper_quizs" caption="试卷题目">       <column_list>           <column name="id" pk="true" data_type="integer" caption="考卷编号"/>           <column name="paper_id" data_type="integer" caption="试卷流水号"/>           <column name="quiz_id" data_type="integer" caption="试题编号"/>           <column name="score" data_type="integer" caption="分值"/>       </column_list>       <fk column="paper_id" parent_table="test_paper" reference_column="id"/>       <fk column="quiz_id" parent_table="quiz" reference_column="id"/>   </table>      <!--允许参加某考试的考生列表-->   <table name="submitted_paper" caption="考生答卷">       <column_list>           <column name="id" pk="true" data_type="integer" caption="答卷编号"/>           <column name="paper_id" data_type="integer" caption="试卷流水号"/>           <column name="tester_id" data_type="integer" caption="考生编号"/>           <column name="test_time" data_type="integer" caption="考试所用时间"/>           <column name="final_score" data_type="integer" caption="最后得分"/>       </column_list>       <fk column="paper_id" parent_table="test_paper" reference_column="id"/>       <fk column="tester_id" parent_table="tester" reference_column="id"/>   </table>      <table name="submitted_answer" caption="考生答案">       <column_list>           <column name="submitted_id" data_type="integer" caption="答卷编号"/>           <column name="quiz_id" data_type="integer" caption="题目编号"/>           <column name="answer" data_type="varchar" length="300" caption="答案"/>           <column name="score" data_type="integer" caption="得分"/>           <column name="taster" data_type="varchar" length="30" caption="审阅人"/>       </column_list>       <fk column="submitted_id" parent_table="submitted_paper" reference_column="id"/>       <fk column="quiz_id" parent_table="quiz" reference_column="id"/>   </table>     </tables>    <initdatas>   <exec_sql sql="insert into sys_code(id,kind,option) values(1,'试卷知识点','基础')"/>   <exec_sql sql="insert into sys_right(id,parent_id,name,is_leaf) values(00,0,'系统',false)"/>   <exec_sql sql="insert into sys_right(id,parent_id,name,is_leaf) values(01,0,'考生',false)"/>   <exec_sql sql="insert into sys_right(id,parent_id,name,is_leaf) values(02,01,'新增考生',true)"/>   <exec_sql sql="insert into sys_right(id,parent_id,name,is_leaf) values(03,01,'删除考生',true)"/>   <exec_sql sql="insert into sys_right(id,parent_id,name,is_leaf) values(04,01,'修改考生',true)"/>   <exec_sql sql="insert into sys_right(id,parent_id,name,is_leaf) values(05,0,'试题库',false)"/>   <exec_sql sql="insert into sys_right(id,parent_id,name,is_leaf) values(06,06,'新增试题',true)"/>   <exec_sql sql="insert into sys_right(id,parent_id,name,is_leaf) values(07,06,'修改试题',true)"/>   <exec_sql sql="insert into sys_right(id,parent_id,name,is_leaf) values(08,06,'删除试题',true)"/>   <exec_sql sql="insert into sys_right(id,parent_id,name,is_leaf) values(09,0,'试卷',false)"/>   <exec_sql sql="insert into sys_right(id,parent_id,name,is_leaf) values(10,9,'生成试卷',true)"/>   <exec_sql sql="insert into sys_right(id,parent_id,name,is_leaf) values(11,9,'注册考生到考试',true)"/>   <exec_sql sql="insert into sys_right(id,parent_id,name,is_leaf) values(12,9,'阅卷',true)"/>   <exec_sql sql="insert into sys_right(id,parent_id,name,is_leaf) values(13,9,'答卷查看',true)"/>   <exec_sql sql="insert into sys_right(id,parent_id,name,is_leaf) values(14,0,'考生成绩',false)"/>   <exec_sql sql="insert into sys_right(id,parent_id,name,is_leaf) values(15,14,'查看考生成绩',true)"/>   <exec_sql sql="insert into sys_right(id,parent_id,name,is_leaf) values(16,14,'修正考生成绩',true)"/>   <exec_sql sql="insert into sys_right(id,parent_id,name,is_leaf) values(17,0,'统计查询',true)"/>   <exec_sql sql="insert into sys_right(id,parent_id,name,is_leaf) values(18,0,'系统维护',false)"/>   <exec_sql sql="insert into sys_right(id,parent_id,name,is_leaf) values(19,18,'用户管理',false)"/>   <exec_sql sql="insert into sys_right(id,parent_id,name,is_leaf) values(21,19,'修改权限',true)"/>   <exec_sql sql="insert into sys_right(id,parent_id,name,is_leaf) values(22,19,'添加权限组',true)"/>   <exec_sql sql="insert into sys_right(id,parent_id,name,is_leaf) values(23,19,'删除权限组',true)"/>   <exec_sql sql="insert into sys_right(id,parent_id,name,is_leaf) values(24,19,'添加用户',true)"/>   <exec_sql sql="insert into sys_right(id,parent_id,name,is_leaf) values(25,19,'删除用户',true)"/>   <exec_sql sql="insert into sys_right(id,parent_id,name,is_leaf) values(26,19,'修改用户',true)"/>   <exec_sql sql="insert into sys_right(id,parent_id,name,is_leaf) values(27,18,'代码维护',true)"/>   <exec_sql sql="insert into sys_right(id,parent_id,name,is_leaf) values(28,18,'系统参数维护',true)"/>   <exec_sql sql="insert into sys_right(id,parent_id,name,is_leaf) values(29,18,'单位信息维护',true)"/>  </initdatas>                                                                                                                                             </project>                                                                                                                                         上述两个文件放在同一目录，但是xml中并没有按照dtd的语法，如节点的顺序等，dtd并没有执行验证 ，在ie中xml依然能够正常先是，请问何解？    收藏   分享   顶(0)    关闭广告显示