獲取以下錯誤org.hibernate.MappingException：否方言映射的JDBC類型：-1

我收到異常在query.can你請告訴mw什麼是錯誤的是在我的代碼？獲取以下錯誤org.hibernate.MappingException：否方言映射的JDBC類型：-1

org.hibernate.MappingException: No Dialect mapping for JDBC type: -1 
at org.hibernate.dialect.TypeNames.get(TypeNames.java:79) 
at org.hibernate.dialect.TypeNames.get(TypeNames.java:104) 
at org.hibernate.dialect.Dialect.getHibernateTypeName(Dialect.java:393) 
at org.hibernate.loader.custom.CustomLoader$Metadata.getHibernateType(CustomLoader.java:582 
    at org.hibernate.loader.custom.CustomLoader$ScalarResultColumnProcessor.performDiscovery(Custom Loader.java:508) 
    at org.hibernate.loader.custom.CustomLoader.autoDiscoverTypes(CustomLoader.java:524) 
    at org.hibernate.loader.Loader.getResultSet(Loader.java:1821) 
    at org.hibernate.loader.Loader.doQuery(Loader.java:697) 
    at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:259) 
    at org.hibernate.loader.Loader.doList(Loader.java:2232) 
    at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2129) 
    at org.hibernate.loader.Loader.list(Loader.java:2124) 
    at org.hibernate.loader.custom.CustomLoader.list(CustomLoader.java:312) 
    at org.hibernate.impl.SessionImpl.listCustomQuery(SessionImpl.java:1723) 
    at org.hibernate.impl.AbstractSessionImpl.list(AbstractSessionImpl.java:165) 
    at org.hibernate.impl.SQLQueryImpl.list(SQLQueryImpl.java:175) 
    at com.bdisys.promorphics.dao.impl.BlogDaoImpl.getTopBlogsQuesByDate(BlogDaoImpl.java:126) 
    at org.apache.jsp.Mydetails_jsp._jspService(Mydetails_jsp.java:935) 
    at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) 
    at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:374) 
    at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342) 
    at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) 
    at org.tuckey.web.filters.urlrewrite.RuleChain.handleRewrite(RuleChain.java:176) 
    at org.tuckey.web.filters.urlrewrite.RuleChain.doRules(RuleChain.java:145) 
    at org.tuckey.web.filters.urlrewrite.UrlRewriter.processRequest(UrlRewriter.java:92) 
    at org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:381) 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) 
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) 
    at  org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) 
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) 
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) 
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) 
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293) 
    at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849) 
    at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583) 
    at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454) 
    at java.lang.Thread.run(Unknown Source)

Blog.java：

@SuppressWarnings("serial") 
    @Entity 
    @Table(name="blog") 
    public class Blog extends BaseDomain { 

    @Column(name="blog_title") 
    private String blogTitle; 

    @Column(name="blog_text",columnDefinition="TEXT") 
    private String blogText; 

    @Enumerated(EnumType.STRING) 
    @Column(name="blog_status") 
    private Status blogStatus; 

    @OneToOne 
    @JoinColumn(name="created_by", nullable=false) 
    private User createdBy; 

    @OneToOne 
    @JoinColumn(name="blog_category", nullable=false) 
    private BlogCategory blogCategory; 

    @Temporal(TemporalType.DATE) 
    @Column(name="created_date") 
    private Date createdDate; 

    @Column(name="likes") 
    private Long likes; 

    @Column(name="uploads") 
    private String uploads; 

    @Column(name="youtube_link") 
    private String youTubeLik; 

    @Column(name="moderator_comment") 
    private String moderatorComment; 

    @Lob 
    @Column(name="blog_description") 
    private String blog_desc; 

    @ManyToOne 
    @JoinColumn(name="users") 
    private User users; 

    public User getUsers() { 
    return users; 
    } 

    public void setUsers(User users) { 
    this.users = users; 
    } 

    public String getBlog_desc() { 
    return blog_desc; 
    } 

    public void setBlog_desc(String blog_desc) { 
    this.blog_desc = blog_desc; 
    } 

    public String getBlogTitle() { 
    return blogTitle; 
    } 

    public void setBlogTitle(String blogTitle) { 
    this.blogTitle = blogTitle; 
    } 

    public String getBlogText() { 
    return blogText; 
    } 

    public void setBlogText(String blogText) { 
    this.blogText = blogText; 
    } 

    public Status getBlogStatus() { 
    return blogStatus; 
    } 

    public void setBlogStatus(Status blogStatus) { 
    this.blogStatus = blogStatus; 
    } 

    public User getCreatedBy() { 
    return createdBy; 
    } 

    public void setCreatedBy(User createdBy) { 
    this.createdBy = createdBy; 
    } 

    public BlogCategory getBlogCategory() { 
    return blogCategory; 
    } 

    public void setBlogCategory(BlogCategory blogCategory) { 
    this.blogCategory = blogCategory; 
    } 

    public Date getCreatedDate() { 
    return createdDate; 
    } 

    public void setCreatedDate(Date createdDate) { 
    this.createdDate = createdDate; 
    } 

    public Long getLikes() { 
    return likes; 
    } 

    public void setLikes(Long likes) { 
    this.likes = likes; 
    } 

    public String getUploads() { 
    return uploads; 
    } 

    public void setUploads(String uploads) { 
    this.uploads = uploads; 
    } 

    public String getYouTubeLik() { 
    return youTubeLik; 
    } 

    public void setYouTubeLik(String youTubeLik) { 
    this.youTubeLik = youTubeLik; 
    } 

    public String getModeratorComment() { 
    return moderatorComment; 
    } 

    public void setModeratorComment(String moderatorComment) { 
    this.moderatorComment = moderatorComment; 
    } 



    }

Askquestions.java：

@SuppressWarnings("serial") 
    @Entity 
    @Table(name="askquestions") 
    public class Askquestions extends BaseDomain { 

@Column(length = 100, name = "id_subscribers") 
private String idSubscribers; 

@Column(length = 100, name = "is_anonymous") 
private String isAnonymous; 

@Column(length = 100, name = "display_name") 
private String displayName; 

@Temporal(TemporalType.DATE) 
    @Column(length = 100, name = "created_on") 
private Date createdQuesOn; 

@Lob 
@Column(name = "ask_question") 
private String askQuestion; 

@Column(length = 100, name = "ask_to_whom") 
private String askToWhom; 

@Lob 
@Column(name="question_of_day") 
private String questionOfDay; 

@ManyToOne 
@JoinColumn(name="ask_category") 
private Askcategory askcategory; 

@ManyToOne 
    @JoinColumn(name="users") 
    private User users; 

public User getUsers() { 
    return users; 
} 

public void setUsers(User users) { 
    this.users = users; 
} 


public Askcategory getAskcategory() { 
    return askcategory; 
} 

public void setAskcategory(Askcategory askcategory) { 
    this.askcategory = askcategory; 
} 

public String getQuestionOfDay() { 
     return questionOfDay; 
    } 

    public void setQuestionOfDay(String questionOfDay) { 
     this.questionOfDay = questionOfDay; 
    } 

public String getIdSubscribers() { 
    return idSubscribers; 
} 

public void setIdSubscribers(String idSubscribers) { 
    this.idSubscribers = idSubscribers; 
} 

public String getIsAnonymous() { 
    return isAnonymous; 
} 

public void setIsAnonymous(String isAnonymous) { 
    this.isAnonymous = isAnonymous; 
} 

public String getDisplayName() { 
    return displayName; 
} 

public void setDisplayName(String displayName) { 
    this.displayName = displayName; 
} 

public String getAskQuestion() { 
    return askQuestion; 
} 

public void setAskQuestion(String askQuestion) { 
    this.askQuestion = askQuestion; 
} 

public String getAskToWhom() { 
    return askToWhom; 
} 

public void setAskToWhom(String askToWhom) { 
    this.askToWhom = askToWhom; 
} 

public Date getCreatedQuesOn() { 
    return createdQuesOn; 
} 

public void setCreatedQuesOn(Date createdQuesOn) { 
    this.createdQuesOn = createdQuesOn; 
} 


    }

BlogDaoimpl方法：是沒有得到執行此查詢，而其他小的查詢越來越executed.why是它發生????

 String sql = " select title , date from (select blog_title as title ,created_date   as date from blog union select ask_question as title , created_on as date from askquestions) as aa order by date desc"; 

    SQLQuery query = getSession().createSQLQuery(sql); 

    return query.list();

hibrnate.cfg.xml：

<?xml version="1.0" encoding="UTF-8"?> 
    <!DOCTYPE hibernate-configuration PUBLIC 
    "-//Hibernate/Hibernate Configuration DTD 3.0//EN" 
    "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd"> 
    <hibernate-configuration> 
<session-factory> 
    <property name="hibernate.connection.driver_class"> 
     com.mysql.jdbc.Driver 
    </property> 
    <!-- <property name="hibernate.connection.password">websitebdi</property> 
    <property name="hibernate.connection.url">jdbc:mysql://184.172.182.251:3306/bdiwebsite</property> 
    <property name="hibernate.connection.username">bdiwebsite</property> --> 

    <property name="hibernate.connection.password">MAYbdiSYS2008</property> 
    <property name="hibernate.connection.url">jdbc:mysql://115.119.114.10:3306/bdisystems</property> 
    <property name="hibernate.connection.username">admin</property> 
    <property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property> 
    <property name="current_session_context_class">thread</property> 
    <property name="hibernate.hbm2ddl.auto">update</property> 
    <property name="hibernate.show_sql">false</property> 
    <property name="format_sql">true</property> 
    <property name="use_sql_comments">true</property> 


    <property name="hibernate.connection.provider_class"> 
     org.hibernate.connection.C3P0ConnectionProvider 
    </property> 
    <!-- The maximum number of connections --> 
    <property name="hibernate.c3p0.max_size">20</property> 
    <!-- The minimum number of connections --> 
    <property name="hibernate.c3p0.min_size">5</property> 
    <!-- Get a connection timeout , If you exceed this time , Throws an exception, in milliseconds --> 
    <property name="hibernate.c3p0.timeout">120</property> 
    <!-- The maximum number of PreparedStatement --> 
    <property name="hibernate.c3p0.max_statements">100</property> 
    <!-- Every 120 seconds checking connection idle connection in the pool, the unit is in seconds --> 
    <property name="hibernate.c3p0.idle_test_period">120</property> 
    <!-- When connection pooling connections inside out, look at the new C3P0  get the number of connections --> 
    <property name="hibernate.c3p0.acquire_increment">2</property> 
    <!-- Always verify the connection --> 
    <property name="hibernate.c3p0.validate">true</property> 
    <!--  
     <property name="hibernate.c3p0.max_size">100</property> 
     <property name="hibernate.c3p0.min_size">0</property> 
     <property name="hibernate.c3p0.acquire_increment">1</property> 
     <property name="hibernate.c3p0.idle_test_period">300</property> 
     <property name="hibernate.c3p0.max_statements">0</property> 
     <property name="hibernate.c3p0.timeout">100</property> 
    --> 

    <!-- Mapping Classes --> 

    <mapping class="com.bdisys.promorphics.domain.BlogCategory"/> 
    <mapping class="com.bdisys.promorphics.domain.Blog"/> 

    <mapping class="com.bdisys.promorphics.domain.Career"/> 
    <mapping class="com.bdisys.promorphics.domain.Partners"/> 
    <mapping class="com.bdisys.promorphics.domain.Askcategory"/> 
    <mapping class="com.bdisys.promorphics.domain.Askquestions"/> 
    <mapping class="com.bdisys.promorphics.domain.Askanswers"/> 

</session-factory> 
    </hibernate-configuration>

來源

2014-02-18 User2413

'-1'是'java.sql.Types.LONGVARCHAR'。 Hibernate想要映射到這種JDBC類型，但驅動程序或方言實際上並不支持它。 –

所以你能告訴我我需要做什麼來解決這個問題嗎？ – User2413

如果我能我會發佈一個答案;我不使用Hibernate，所以我不知道足夠的答案。 –

創建自定義Dialect（延伸MySQLDialect），並在構造函數中添加

registerHibernateType(Types.LONGVARCHAR, TextType.INSTANCE.getName()); 

public class MySQLDialect extends MySQLDialect { 
    public AGOSQLServerDialect() { 
    super(); 
    registerHibernateType(Types.LONGVARCHAR, TextType.INSTANCE.getName()); 
    } 
}

記住更改方言類進入休眠配置文件

<property name="hibernate.dialect">path.to.YourDialect</property>

來源

2014-02-18 11:13:07

嗨bellabex謝謝，但你能告訴我如何改變休眠配置的方言，因爲我是新的冬眠！在此先感謝！ – User2413

嗨bellabex它顯示一些錯誤，如：INSTANCE無法解析或不是（TextType.INSTANCE.getName（））的字段。 – User2413

隨着Hibernate 3以及版本4的代碼是相同的;檢查更好，也許你是'進口'錯誤的TextType（正確的是'org.hibernate.type.TextType'） –

獲取以下錯誤org.hibernate.MappingException：否方言映射的JDBC類型：-1

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