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ResponseEntity在spring引导中返回字符串而不是xml类型

spring tomcat spring-boot

ResponseEntity在spring引导中返回字符串而不是xml类型,spring,tomcat,spring-boot,Spring,Tomcat,Spring Boot,我使用了spring和weblogic， 我有这样一种方法： @RequestMapping(value = "/all/{parentId}", method = RequestMethod.GET) @ResponseBody public ResponseEntity<String> getAll(@PathVariable int parentId) { StringBuffer returnValue = new StringBuffer(""); Powe

我使用了spring和weblogic， 我有这样一种方法：

@RequestMapping(value = "/all/{parentId}", method = RequestMethod.GET)
@ResponseBody
public ResponseEntity<String> getAll(@PathVariable int parentId) {
    StringBuffer returnValue = new StringBuffer("");
    Power power = iPowerService.loadByEntityId(parentId);
    makeTree(power, returnValue);
    HttpHeaders responseHeaders = new HttpHeaders();
    responseHeaders.add("Content-Type", "text/html; charset=UTF-8");
    return new ResponseEntity<String>(returnValue.toString(), responseHeaders, HttpStatus.CREATED);
}

<201 Created,
<item text="primary" id="740167402" im0="Mehvar_V.png"
    im1="Mehvar_V.png" im2="Mehvar_V.png" isVirtual="true">
    <item text="..." im0="leaf.gif" id="t740167402" />
</item>
<item
    text="fff"
    id="740168675" im0="Mehvar_V.png" im1="Mehvar_V.png" im2="Mehvar_V.png"
    isVirtual="true">
    <item text="..." im0="leaf.gif" id="t740168675" />
</item>
<item text="mmmehdi" id="12" im0="Mehvar_V.png" im1="Mehvar_V.png"
    im2="Mehvar_V.png" isVirtual="true">
    <item text="..." im0="leaf.gif" id="t12" />
</item>
<item text="province" id="123" im0="Mehvar_V.png" im1="Mehvar_V.png"
    im2="Mehvar_V.png" isVirtual="true">
    <item text="..." im0="leaf.gif" id="t123" />
</item>
<item text="power" id="1234" im0="Mehvar_V.png" im1="Mehvar_V.png"
    im2="Mehvar_V.png" isVirtual="true">
    <item text="..." im0="leaf.gif" id="t1234" />
</item>
,{Content-Type=[text/html; charset=UTF-8]}>

"<item text="primary" id="740167402" im0="Mehvar_V.png"
    im1="Mehvar_V.png" im2="Mehvar_V.png" isVirtual="true">
    <item text="..." im0="leaf.gif" id="t740167402" />
</item>
<item
    text="fff"
    id="740168675" im0="Mehvar_V.png" im1="Mehvar_V.png" im2="Mehvar_V.png"
    isVirtual="true">
    <item text="..." im0="leaf.gif" id="t740168675" />
</item>
<item text="mmmehdi" id="12" im0="Mehvar_V.png" im1="Mehvar_V.png"
    im2="Mehvar_V.png" isVirtual="true">
    <item text="..." im0="leaf.gif" id="t12" />
</item>
<item text="province" id="123" im0="Mehvar_V.png" im1="Mehvar_V.png"
    im2="Mehvar_V.png" isVirtual="true">
    <item text="..." im0="leaf.gif" id="t123" />
</item>
<item text="power" id="1234" im0="Mehvar_V.png" im1="Mehvar_V.png"
    im2="Mehvar_V.png" isVirtual="true">
    <item text="..." im0="leaf.gif" id="t1234" />
</item>"

@RequestMapping（value=“/all/{parentId}”，method=RequestMethod.GET）
@应答器
公共响应属性getAll（@PathVariable int parentId）{
StringBuffer returnValue=新的StringBuffer（“”）；
电源=iPowerService.loadByEntityId（父ID）；
makeTree（power，returnValue）；
HttpHeaders responseHeaders=新的HttpHeaders（）；
add（“内容类型”，“text/html；charset=UTF-8”）；
返回新的ResponseEntity（returnValue.toString（），responseHeaders，HttpStatus.CREATED）；
}
上述方法为树生成xml格式，并将其作为响应发送给客户端，如下所示：

@RequestMapping(value = "/all/{parentId}", method = RequestMethod.GET)
@ResponseBody
public ResponseEntity<String> getAll(@PathVariable int parentId) {
    StringBuffer returnValue = new StringBuffer("");
    Power power = iPowerService.loadByEntityId(parentId);
    makeTree(power, returnValue);
    HttpHeaders responseHeaders = new HttpHeaders();
    responseHeaders.add("Content-Type", "text/html; charset=UTF-8");
    return new ResponseEntity<String>(returnValue.toString(), responseHeaders, HttpStatus.CREATED);
}

<201 Created,
<item text="primary" id="740167402" im0="Mehvar_V.png"
    im1="Mehvar_V.png" im2="Mehvar_V.png" isVirtual="true">
    <item text="..." im0="leaf.gif" id="t740167402" />
</item>
<item
    text="fff"
    id="740168675" im0="Mehvar_V.png" im1="Mehvar_V.png" im2="Mehvar_V.png"
    isVirtual="true">
    <item text="..." im0="leaf.gif" id="t740168675" />
</item>
<item text="mmmehdi" id="12" im0="Mehvar_V.png" im1="Mehvar_V.png"
    im2="Mehvar_V.png" isVirtual="true">
    <item text="..." im0="leaf.gif" id="t12" />
</item>
<item text="province" id="123" im0="Mehvar_V.png" im1="Mehvar_V.png"
    im2="Mehvar_V.png" isVirtual="true">
    <item text="..." im0="leaf.gif" id="t123" />
</item>
<item text="power" id="1234" im0="Mehvar_V.png" im1="Mehvar_V.png"
    im2="Mehvar_V.png" isVirtual="true">
    <item text="..." im0="leaf.gif" id="t1234" />
</item>
,{Content-Type=[text/html; charset=UTF-8]}>

"<item text="primary" id="740167402" im0="Mehvar_V.png"
    im1="Mehvar_V.png" im2="Mehvar_V.png" isVirtual="true">
    <item text="..." im0="leaf.gif" id="t740167402" />
</item>
<item
    text="fff"
    id="740168675" im0="Mehvar_V.png" im1="Mehvar_V.png" im2="Mehvar_V.png"
    isVirtual="true">
    <item text="..." im0="leaf.gif" id="t740168675" />
</item>
<item text="mmmehdi" id="12" im0="Mehvar_V.png" im1="Mehvar_V.png"
    im2="Mehvar_V.png" isVirtual="true">
    <item text="..." im0="leaf.gif" id="t12" />
</item>
<item text="province" id="123" im0="Mehvar_V.png" im1="Mehvar_V.png"
    im2="Mehvar_V.png" isVirtual="true">
    <item text="..." im0="leaf.gif" id="t123" />
</item>
<item text="power" id="1234" im0="Mehvar_V.png" im1="Mehvar_V.png"
    im2="Mehvar_V.png" isVirtual="true">
    <item text="..." im0="leaf.gif" id="t1234" />
</item>"
客户端将此响应转换为树并显示它。
它成功地工作了
当我迁移到spring boot时，此方法的响应将转换为如下字符串：

@RequestMapping(value = "/all/{parentId}", method = RequestMethod.GET)
@ResponseBody
public ResponseEntity<String> getAll(@PathVariable int parentId) {
    StringBuffer returnValue = new StringBuffer("");
    Power power = iPowerService.loadByEntityId(parentId);
    makeTree(power, returnValue);
    HttpHeaders responseHeaders = new HttpHeaders();
    responseHeaders.add("Content-Type", "text/html; charset=UTF-8");
    return new ResponseEntity<String>(returnValue.toString(), responseHeaders, HttpStatus.CREATED);
}

<201 Created,
<item text="primary" id="740167402" im0="Mehvar_V.png"
    im1="Mehvar_V.png" im2="Mehvar_V.png" isVirtual="true">
    <item text="..." im0="leaf.gif" id="t740167402" />
</item>
<item
    text="fff"
    id="740168675" im0="Mehvar_V.png" im1="Mehvar_V.png" im2="Mehvar_V.png"
    isVirtual="true">
    <item text="..." im0="leaf.gif" id="t740168675" />
</item>
<item text="mmmehdi" id="12" im0="Mehvar_V.png" im1="Mehvar_V.png"
    im2="Mehvar_V.png" isVirtual="true">
    <item text="..." im0="leaf.gif" id="t12" />
</item>
<item text="province" id="123" im0="Mehvar_V.png" im1="Mehvar_V.png"
    im2="Mehvar_V.png" isVirtual="true">
    <item text="..." im0="leaf.gif" id="t123" />
</item>
<item text="power" id="1234" im0="Mehvar_V.png" im1="Mehvar_V.png"
    im2="Mehvar_V.png" isVirtual="true">
    <item text="..." im0="leaf.gif" id="t1234" />
</item>
,{Content-Type=[text/html; charset=UTF-8]}>

"<item text="primary" id="740167402" im0="Mehvar_V.png"
    im1="Mehvar_V.png" im2="Mehvar_V.png" isVirtual="true">
    <item text="..." im0="leaf.gif" id="t740167402" />
</item>
<item
    text="fff"
    id="740168675" im0="Mehvar_V.png" im1="Mehvar_V.png" im2="Mehvar_V.png"
    isVirtual="true">
    <item text="..." im0="leaf.gif" id="t740168675" />
</item>
<item text="mmmehdi" id="12" im0="Mehvar_V.png" im1="Mehvar_V.png"
    im2="Mehvar_V.png" isVirtual="true">
    <item text="..." im0="leaf.gif" id="t12" />
</item>
<item text="province" id="123" im0="Mehvar_V.png" im1="Mehvar_V.png"
    im2="Mehvar_V.png" isVirtual="true">
    <item text="..." im0="leaf.gif" id="t123" />
</item>
<item text="power" id="1234" im0="Mehvar_V.png" im1="Mehvar_V.png"
    im2="Mehvar_V.png" isVirtual="true">
    <item text="..." im0="leaf.gif" id="t1234" />
</item>"

”
"
正如您所看到的，环绕着我的输出

发生了什么以及为什么会发生？
为什么我的响应会向客户端发送字符串。
我希望输出与@ResponseBody成功运行时一样

，您不必将响应封装在新的响应中，您只需执行以下操作：

@RequestMapping(value = "/all/{parentId}", method = RequestMethod.GET)
@ResponseBody
@ResponseStatus(HttpStatus.INTERNAL_SERVER_ERROR)
public String getAll(@PathVariable int parentId) {
  StringBuffer returnValue = new StringBuffer("");
  ...
  return returnValue.toString()
}
或者，您可以删除响应主体：

@RequestMapping(value = "/all/{parentId}", method = RequestMethod.GET)
public ResponseEntity<String> getAll(@PathVariable int parentId) {

@RequestMapping（value=“/all/{parentId}”，method=RequestMethod.GET）
公共响应属性getAll（@PathVariable int parentId）{
使用@ResponseBody，您不必用新的ResponseEntity包装您的响应，您只需执行以下操作：

@RequestMapping(value = "/all/{parentId}", method = RequestMethod.GET)
@ResponseBody
@ResponseStatus(HttpStatus.INTERNAL_SERVER_ERROR)
public String getAll(@PathVariable int parentId) {
  StringBuffer returnValue = new StringBuffer("");
  ...
  return returnValue.toString()
}
或者，您可以删除响应主体：

@RequestMapping(value = "/all/{parentId}", method = RequestMethod.GET)
public ResponseEntity<String> getAll(@PathVariable int parentId) {

@RequestMapping（value=“/all/{parentId}”，method=RequestMethod.GET）
公共响应属性getAll（@PathVariable int parentId）{
尝试将
products={“application/xml”，“text/xml”}
添加到
@RequestMapping
尝试将
products={“application/xml”，“text/xml”}
添加到
@RequestMapping