loadrunner如何将文件转换成base64 字节

archonwang

项目上遇到一个问题，由于文件在上传时采用了流传输模式，上传的是文件经base64转换后的编码。所以想了解下如何实现。

具体要求如下：
将d:\abc.txt文件转换成base64 string post到服务端。

post脚本样本
        web_custom_request("UploadFile",
                "URL=http://192.168.17.112/api/File/UploadFile",
                "Method=POST",
                "Resource=0",
                "RecContentType=application/json",
                "Referer=",
                "Snapshot=t4.inf",
                "Mode=HTML",
                "EncType=application/json",
                "Body={\r\n  \"Passport\": \"QfrU2SFIdJ5Y6k9LPRXFGymU2EdN0B/0l6xRIWC0/3vb4imBnwdw12e8BwS0jxwl0Gi+36cXi+0LinHl8a4nOnyQlnzwlEEv4/KzLkTeE6Xv8juLNvNZ4H0yPofTNugHNfJVkEZwxS+7SzNNdn4wGLgrv1eieqUSKpojNEV/cxw=\",\r\n  \"FileName\": \"testdocx-CH.docx\",\r\n  \"Data\": \"UEsDBBQABgAIAAAAIQAY+"
                "WgijQEAAK0GAAATAAgCW0NvbnRlbnRfVHlwZXNdLnhtbCCiBAIooAACAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
                "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAC0VctOwzAQvCPxD5GvKHHLASGUpAceR6hE+QDX3rQWiW3Z29ffs0nbCCGaiJZcIkXRzszOzm7SybYqozX4oK3J2DgZsQiMtEqbRcY+Zi/xPYsCCqNEaQ1kbAeBTfLrq3S2cxAiqjYhY0tE98B5kEuoREisA0NfCusrgfTqF9wJ+SkWwG9HozsurUEwGGONwfL0jQR4rSCaCo+"
                "voiIevrFe8cJaNBYhJATHosd9XU2dMeFcqaVAEs7XRv0gjW1RaAnKylVFVEkN57yVEAK1VpVJC31TQ/M8fYJCrEqMnrekbW+HhzL8jfXQZkKVjbKw1C50MHS3dVB20p62u26YM9xpkSuhzVH/SR1mVc3Bk6//P6YWuldEwF05RFD2uL30YNRAST0id0mgeU29dYHTVlw8BKg3QIGKaWEceNTQRvhkBAIgUgAGWNQjclf7zbFAOj7Am+f4Yg8amF7Kgg7STMxLuJjvl/t0gO4VsYH5+2DufwPvEtLmT1p/hhnHs1lX/5I63vxs8i8AAAD//"
                "wMAUEsDBBQABgAIAAAAIQAekRq38wAAAE4CAAALAAgCX3JlbHMvLnJlbHMgogQCKKAAAgAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
                "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAjJLbSgNBDIbvBd9hyH032woi0tneSKF3IusDhJnsAXcOzKTavr2jILpQ217m9OfLT9abg5vUO6c8Bq9hWdWg2JtgR99reG23iwdQWchbmoJnDUfOsGlub9YvPJGUoTyMMaui4rOGQSQ+ImYzsKNchci+VLqQHEkJU4+RzBv1jKu6vsf0VwOamabaWQ1pZ+9AtcdYNl/WDl03Gn4KZu/"
                "Yy4kVyAdhb9kuYipsScZyjWop9SwabDDPJZ2RYqwKNuBpotX1RP9fi46FLAmhCYnP83x1nANaXg902aJ5x687HyFZLBZ9e/tDg7MvaD4BAAD//"
                "wMAUEsDBBQABgAIAAAAIQA2SJVoIAEAAL4EAAAcAAgBd29yZC9fcmVscy9kb2N1bWVudC54bWwucmVscyCiBAEooAABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAKzUzU6DQBAH8LuJ70D2LgtVqzFdejEmvSo+"
                "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"
                "AABkb2NQcm9wcy9jb3JlLnhtbFBLAQItABQABgAIAAAAIQCc6zcbSwIAAEoIAAASAAAAAAAAAAAAAAAAAGgwAAB3b3JkL2ZvbnRUYWJsZS54bWxQSwECLQAUAAYACAAAACEAHOvHN3oBAADKAgAAEAAAAAAAAAAAAAAAAADjMgAAZG9jUHJvcHMvYXBwLnhtbFBLBQYAAAAADgAOAIADAACTNQAAAAA=\"\r\n}",
                LAST);

fhhh_eyou

确认一下服务器、客户端都支持64位