Spring MVC 关于jsonp跨域处理

• 新建JsonpAdvice控制器增强继承org.springframework.web.servlet.mvc.method.annotation.AbstractJsonpResponseBodyAdvice类

    package com.drore.jsonp.advice;
  
    import org.springframework.web.bind.annotation.ControllerAdvice;
    import org.springframework.web.servlet.mvc.method.annotation.AbstractJsonpResponseBodyAdvice;
  
    @ControllerAdvice
    public class JsonpAdvice extends AbstractJsonpResponseBodyAdvice{
    	public JsonpAdvice() {
    		super("callback","jsonp");
    	}
    }

• 所有controller类使用@RestController注解

    package com.drore.jsonp.controller;
    
    import java.util.ArrayList;
    import java.util.HashMap;
    import java.util.List;
    import java.util.Map;
    
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RestController;
    
    @RestController
    public class HomeController {
  
    
    	@RequestMapping(value="/render.json")
    	public List<Map<String, Object>> render(){
    		List<Map<String, Object>> list=new ArrayList<Map<String,Object>>();
    		for (int i = 0; i < 10; i++) {
    			Map<String, Object> map=new HashMap<String, Object>();
    			map.put("userName", "张三"+i);
    			map.put("sex", "男");
    			map.put("phone", "1598723212"+i);
    			list.add(map);
    		}
    		return list;
    	}
    }

• jQuery跨域调用：

    $.ajax({
    	url:'http://localhost:9090/render.json',
    	dataType:'jsonp',
    	success:function(data){
    		console.log(data)
    	}
    })
  
    //返回json数据
    jQuery162036356921307742596_1442105501105([
        {
            "phone": "15987232120",
            "sex": "男",
            "userName": "张三0"
        },
       //......
    ]);