Question

这个简单的服务器端方法（java / hibernate）存在一些问题：

@RequestMapping(value="/Prova" ,  method=RequestMethod.POST)
@Transactional( propagation = Propagation.REQUIRED, rollbackFor = Exception.class)
public ResponseEntity<String>  Prova(
        HttpServletRequest request, HttpServletResponse response
        ) throws Exception
{

    log.error("Sono qui");
    return new ResponseEntity<String>("pippotopolinopaperino",HttpStatus.OK);   

}

如果客户端执行AJAX请求（我使用ExtJs），则响应为：

pippotopolinopa0015↵

为什么？

抱歉我的英文不好

P.p.s我也尝试过：

@RequestMapping(value="/Prova" ,  method=RequestMethod.POST)
@Transactional( propagation = Propagation.REQUIRED, rollbackFor = Exception.class)
public @ResponseBody  String   Prova(
        HttpServletRequest request, HttpServletResponse response
        ) throws Exception
{

    log.error("Sono qui");
    return "pippotopolinopaperino"; 

}

Answer 1

我已经用这种方式解决了：

@RequestMapping(value="/Prova" ,  method=RequestMethod.POST)
@Transactional( propagation = Propagation.REQUIRED, rollbackFor = Exception.class)
public @ResponseBody  List<String>   Prova(
    HttpServletRequest request, HttpServletResponse response
    ) throws Exception
{    
  log.error("Sono qui");
  List<String> ret = new ArrayList<String>();
  ret.add("pippoPlutoTopolino");
  return ret;        
}

或者：

@RequestMapping(value="/Prova2" ,  method=RequestMethod.POST)
@ResponseBody public StringBuffer Prova2(
        HttpServletRequest request
        ) throws Exception
{
  return new StringBuffer("pippoPlutoTopolino");  
}

但我不明白为什么不能返回一个简单的String。

AJAX响应不同于java / hibernate返回的字符串

1 个答案: