Spring MVC Autocomplete無法從json獲得價值

我寫了關於自動完成spring mvc和jquery/json的示例。我使用spring和hibernate從json獲取對象值，但是當我搜索它不起作用時。我已經從數據庫，但自動完成不列表值下拉列表，請任何人都幫我這個問題。Spring MVC Autocomplete無法從json獲得價值

我的用戶

private Integer id; 
private String name; 
private String country; 
public User() { 
} 
public User(String name, String country) { 
this.name; 
this.country; 
} 
// getter and setter 
...

我的服務（UserServiceImpl.java）

@Repository 
public class UserRepositoryImpl implements UserRepository { 
    @Autowired 
    private SessionFactory sessionFactory; 

    @SuppressWarnings("unchecked") 
    public List<String> getCountryList(String query) { 

     List<String> countries = new ArrayList<String>(); 

     Query queryList = sessionFactory.getCurrentSession().createQuery("FROM user u WHERE u.country LIKE '%"+query+"%'"); 
     countries = queryList.list(); 
     query = query.toLowerCase(); 

     return countries; 
    } 
}

我的控制器（UserController中）：

@Controller 
    public class UserController { 

    @Autowired 
    private UserService userService; 

    @RequestMapping(value = "/index", method = RequestMethod.GET) 
    public ModelAndView index() { 
     User userForm = new User(); 
     return new ModelAndView("user", "userForm", userForm); 
    } 

    @RequestMapping(value = "/get_country_list", method = RequestMethod.GET, headers="Accept=*/*") 
    public @ResponseBody List<String> getCountryList(@RequestParam("term") String query) { 
     List<String> countryList = userService.getCountryList(query); 
     return countryList; 
    }

我Ĵ SP（user.jsp）

<body> 
<h2>Spring MVC Autocomplete with JQuery &amp; JSON example</h2> 
<form:form method="post" action="save.html" modelAttribute="userForm"> 
<table> 
<tr> 
    <th>Name</th> 
    <td><form:input path="name" /></td> 
</tr> 
<tr> 
    <th>Country</th> 
    <td><form:input path="country" id="country" /></td> 
</tr> 
<tr> 
    <td colspan="2"> 
     <input type="submit" value="Save" /> 
     <input type="reset" value="Reset" /> 
    </td> 
</tr> 
</table> 
<br /> 

</form:form> 

<script type="text/javascript"> 
    function split(val) { 
     return val.split(/,\s*/); 
    } 
    function extractLast(term) { 
     return split(term).pop(); 
    } 

    $(document).ready(function) { 
     $("#country").autocomplete({ 
      source: function (request, response) { 
      $.getJSON("${pageContext. request. contextPath}/get_country_list.html", { 
       term: extractLast(request.term) 
      }, response); 
     }, 
     search: function() { 
      // custom minLength 
      var term = extractLast(this.value); 
      if (term.length < 1) { 
       return false; 
      } 
     }, 
     focus: function() { 
     // prevent value inserted on focus 
      return false; 
     }, 
     select: function (event, ui) { 
      var terms = split(this.value); 
      // remove the current input 
      terms.pop(); 
      // add the selected item 
      terms.push(ui.item.value); 
      // add placeholder to get the comma-and-space at the end 
      terms.push(""); 
      this.value = terms.join(", "); 
      return false; 
     } 
     }); 
    }); 
</script> 

</body>

我由螢火蟲和JSON響應具有測試自動填充值成功

Object { id=1, name="john", country="london", more...} 
Object { id=2, name="johanson", country="london", more...}

並且它具有下拉但是值在自動填充不顯示。請幫我...

來源

2013-09-23 Khanh Luong Van

在UserRepositoryImpl.java文件更改查詢如下

查詢queryList = sessionFactory.getCurrentSession（）的createQuery（「選擇u.country從用戶u WHERE u.country LIKE「％「+查詢+」％'「）;

來源

2014-03-27 10:39:16 user3346490

Spring MVC Autocomplete無法從json獲得價值

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