SPRING MVC3.2案例讲解--SPRING MVC3的@ResponseBody和ResponseEntity
2013-10-11 17:15
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在传统的开发过程中,我们的控制CONTROLL层通常需要转向一个JSP视图;但随着WEB2.0相关技术的崛起,我们很多时候只需要返回数据即可,而不是一个JSP页面。
SPRING MVC3的@ResponseBody使Controller直接返回数据,而不是直接指向具体的视图;同时通过
@ResponseBody可以直接返回结果,
public class ResponseController {
//http://127.0.0.1:8010/response/annotation
@RequestMapping("/annotation")
public @ResponseBody String responseBody() {
return "The String ResponseBody";
}
@RequestMapping("/charset/accept")
public @ResponseBody String responseAcceptHeaderCharset() {
return "\u3053\u3093\u306b\u3061\u306f\u4e16\u754c\uff01 (\"Hello world!\" in Japanese)";
}
//http://127.0.0.1:8010/response/charset/produce
@RequestMapping(value="/charset/produce", produces="text/plain;charset=UTF-8")
public @ResponseBody String responseProducesConditionCharset() {
return "\u3053\u3093\u306b\u3061\u306f\u4e16\u754c\uff01 (\"Hello world!\" in Japanese)";
}
//http://127.0.0.1:8010/response/entity/status
@RequestMapping("/entity/status")
public ResponseEntity<String> responseEntityStatusCode() {
return new ResponseEntity<String>("The String ResponseBody with custom status code (403 Forbidden)",
HttpStatus.FORBIDDEN);
}
//http://127.0.0.1:8010/response/entity/headers
@RequestMapping("/entity/headers")
public ResponseEntity<String> responseEntityCustomHeaders() {
HttpHeaders headers = new HttpHeaders();
headers.setContentType(MediaType.TEXT_PLAIN);
return new ResponseEntity<String>("The String ResponseBody with custom header Content-Type=text/plain",
headers, HttpStatus.OK);
}
}
大小: 112.8 KB
大小: 111.4 KB
大小: 46.8 KB
查看图片附件
SPRING MVC3的@ResponseBody使Controller直接返回数据,而不是直接指向具体的视图;同时通过
MessageConverter和produces(如produces="text/plain;charset=UTF-8")可以返回各种格式的数据(XML,json,RSS,TEXT,字节流等),本章只介绍最简单的使用;
见代码:@ResponseBody可以直接返回结果,
而ResponseEntity 可以定义返回的HttpHeaders和HttpStatus,见文章最后的两张图
@RequestMapping(value="/response", method=RequestMethod.GET)public class ResponseController {
//http://127.0.0.1:8010/response/annotation
@RequestMapping("/annotation")
public @ResponseBody String responseBody() {
return "The String ResponseBody";
}
@RequestMapping("/charset/accept")
public @ResponseBody String responseAcceptHeaderCharset() {
return "\u3053\u3093\u306b\u3061\u306f\u4e16\u754c\uff01 (\"Hello world!\" in Japanese)";
}
//http://127.0.0.1:8010/response/charset/produce
@RequestMapping(value="/charset/produce", produces="text/plain;charset=UTF-8")
public @ResponseBody String responseProducesConditionCharset() {
return "\u3053\u3093\u306b\u3061\u306f\u4e16\u754c\uff01 (\"Hello world!\" in Japanese)";
}
//http://127.0.0.1:8010/response/entity/status
@RequestMapping("/entity/status")
public ResponseEntity<String> responseEntityStatusCode() {
return new ResponseEntity<String>("The String ResponseBody with custom status code (403 Forbidden)",
HttpStatus.FORBIDDEN);
}
//http://127.0.0.1:8010/response/entity/headers
@RequestMapping("/entity/headers")
public ResponseEntity<String> responseEntityCustomHeaders() {
HttpHeaders headers = new HttpHeaders();
headers.setContentType(MediaType.TEXT_PLAIN);
return new ResponseEntity<String>("The String ResponseBody with custom header Content-Type=text/plain",
headers, HttpStatus.OK);
}
}
大小: 112.8 KB
大小: 111.4 KB
大小: 46.8 KB
查看图片附件
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